chore(deps): update dependency freshrss/freshrss to v1.18.1 (#31)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [FreshRSS/FreshRSS](https://github.com/FreshRSS/FreshRSS) | patch | `1.18.0` -> `1.18.1` |

---

### Release Notes

<details>
<summary>FreshRSS/FreshRSS</summary>

### [`v1.18.1`](https://github.com/FreshRSS/FreshRSS/blob/master/CHANGELOG.md#&#8203;2021-06-06-FreshRSS-1181)

[Compare Source](https://github.com/FreshRSS/FreshRSS/compare/1.18.0...1.18.1)

-   Features
    -   Support standard `HTTP 410 Gone` by disabling (muting) gone feeds [#&#8203;3561](https://github.com/FreshRSS/FreshRSS/pull/3561)
    -   Make advanced feed options such as SSL available to non-admins [#&#8203;3612](https://github.com/FreshRSS/FreshRSS/pull/3612)
-   API
    -   Supported by [Newsboat 2.24+](https://newsboat.org/) [#&#8203;3574](https://github.com/FreshRSS/FreshRSS/pull/3574)
    -   Supported by [RSS Guard](https://github.com/martinrotter/rssguard) [#&#8203;3627](https://github.com/FreshRSS/FreshRSS/pull/3627)
-   UI
    -   Allow Unicode for shortcuts [#&#8203;3548](https://github.com/FreshRSS/FreshRSS/pull/3548)
-   Bug fixing
    -   Fix database lock during refresh with MariaDB [#&#8203;3559](https://github.com/FreshRSS/FreshRSS/pull/3559)
    -   Fix database creation from CLI [#&#8203;3544](https://github.com/FreshRSS/FreshRSS/pull/3544)
    -   Fix: `pdo_sqlite` is optional except for export/import SQLite [#&#8203;3545](https://github.com/FreshRSS/FreshRSS/pull/3545)
    -   Fix import of JSON and TT-RSS files, especially with PHP 8 [#&#8203;3553](https://github.com/FreshRSS/FreshRSS/pull/3553)
        -   Allow import of more than 999 favourites/labelled articles even with SQLite
    -   Fix additional SQL limits, especially for SQLite [#&#8203;3586](https://github.com/FreshRSS/FreshRSS/pull/3586)
    -   Fix search param encoding in user query [#&#8203;3541](https://github.com/FreshRSS/FreshRSS/pull/3541)
    -   Fix undefined variable & dead code when adding feed [#&#8203;3546](https://github.com/FreshRSS/FreshRSS/pull/3546)
    -   Fix missing translation in feed configuration [#&#8203;3554](https://github.com/FreshRSS/FreshRSS/pull/3554)
    -   Fix double escaping in feed filters [#&#8203;3563](https://github.com/FreshRSS/FreshRSS/pull/3563)
    -   Fix bugs in migration system [#&#8203;3589](https://github.com/FreshRSS/FreshRSS/pull/3589)
    -   Fix regression preventing showing startup errors [#&#8203;3590](https://github.com/FreshRSS/FreshRSS/pull/3590)
    -   Fix form redirection after erroneous user creation [#&#8203;3656](https://github.com/FreshRSS/FreshRSS/pull/3656)
    -   Fix JavaScript error during navigation when no article is selected [#&#8203;3655](https://github.com/FreshRSS/FreshRSS/pull/3655)
    -   Fix link to add feeds from the empty homepage [#&#8203;3650](https://github.com/FreshRSS/FreshRSS/pull/3650)
    -   Fix git update error message [#&#8203;3645](https://github.com/FreshRSS/FreshRSS/pull/3645)
-   SimplePie
    -   Fix regression about media attachments [#&#8203;3565](https://github.com/FreshRSS/FreshRSS/pull/3565)
    -   Fix regression about forcing HTTPS for enclosures [#&#8203;3568](https://github.com/FreshRSS/FreshRSS/pull/3568)
    -   Catch ValueError for loadHTML with PHP 8 [simplepie#&#8203;673](https://github.com/simplepie/simplepie/pull/673)
    -   Provide access to latest HTTP status code [simplepie#&#8203;674](https://github.com/simplepie/simplepie/pull/674)
    -   Fix wrong SimplePie type hint [simplepie#&#8203;678](https://github.com/simplepie/simplepie/pull/678)
    -   Merge details from upstream PRs [#&#8203;3588](https://github.com/FreshRSS/FreshRSS/pull/3588), [#&#8203;3614](https://github.com/FreshRSS/FreshRSS/pull/3614)
-   API
    -   Compatibility with Web servers providing `ORIG_PATH_INFO` [#&#8203;3560](https://github.com/FreshRSS/FreshRSS/pull/3560)
-   i18n
    -   Improved Russian [#&#8203;3579](https://github.com/FreshRSS/FreshRSS/pull/3579)
    -   Improved Turkish [#&#8203;3604](https://github.com/FreshRSS/FreshRSS/pull/3604)
    -   Improved Chinese [#&#8203;3600](https://github.com/FreshRSS/FreshRSS/pull/3600)
-   Code improvements:
    -   Friendly constant syntax for Intellisense [#&#8203;3577](https://github.com/FreshRSS/FreshRSS/pull/3577)
    -   Fix several comments syntaxes [#&#8203;3615](https://github.com/FreshRSS/FreshRSS/pull/3615)
    -   Minor uniform stricter HTML [#&#8203;3616](https://github.com/FreshRSS/FreshRSS/pull/3616)
    -   Removed unused variable [#&#8203;3587](https://github.com/FreshRSS/FreshRSS/pull/3587)
    -   Provide action name in Minz controller exception [#&#8203;3624](https://github.com/FreshRSS/FreshRSS/pull/3624)
    -   New convenience method to extract multiline GET parameters from e.g. `<textarea>` [#&#8203;3629](https://github.com/FreshRSS/FreshRSS/pull/3629)
-   Deployment
    -   Automatically apply `latest` tag in git for the latest FreshRSS release [#&#8203;3524](https://github.com/FreshRSS/FreshRSS/pull/3524)
-   Misc.
    -   Remove legacy `data/do-install.txt` for triggering install process [#&#8203;3555](https://github.com/FreshRSS/FreshRSS/pull/3555)
    -   If using built-in git updates, automatically change to git `edge` branch if using old `master` or `dev` branch names [#&#8203;3589](https://github.com/FreshRSS/FreshRSS/pull/3589)

</details>

---

### Configuration

📅 **Schedule**: At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻️ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box.

---

This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).

Reviewed-on: docker/freshrss#31
Co-authored-by: Renovator Bot <renovator@rknet.org>
Co-committed-by: Renovator Bot <renovator@rknet.org>

Dockerfile

@@ -9,7 +9,7 @@ LABEL org.opencontainers.image.documentation="https://gitea.rknet.org/docker/fre
 
 ARG BUILD_VERSION
 # renovate: datasource=github-releases depName=FreshRSS/FreshRSS
-ENV FRESHRSS_VERSION="${BUILD_VERSION:-1.18.0}"
+ENV FRESHRSS_VERSION="${BUILD_VERSION:-1.18.1}"
 
 ADD overlay/ /