ci: replace deprecated group syntax

.woodpecker/docs.yml

@@ -13,13 +13,13 @@ steps:
 
   - name: markdownlint
     image: quay.io/thegeeklab/markdownlint-cli
-    group: test
+    depends_on: [assets]
     commands:
       - markdownlint 'content/**/*.md' 'README.md'
 
   - name: spellcheck
     image: quay.io/thegeeklab/alpine-tools
-    group: test
+    depends_on: [assets]
     commands:
       - spellchecker --files 'content/**/*.md' 'README.md' -d .dictionary -p spell indefinite-article syntax-urls frontmatter --frontmatter-keys title tags
     environment:
@@ -27,12 +27,13 @@ steps:
 
   - name: link-validation
     image: docker.io/lycheeverse/lychee
-    group: test
+    depends_on: [assets]
     commands:
       - lychee --no-progress --format detailed content/ README.md
 
   - name: favicons
     image: docker.io/node:lts-alpine
+    depends_on: [markdownlint, spellcheck, link-validation]
     commands:
       - npm install --quiet --no-progress
       - npm run build
@@ -41,16 +42,19 @@ steps:
 
   - name: build
     image: quay.io/thegeeklab/hugo:0.136.5
+    depends_on: [favicons]
     commands:
       - hugo --panicOnWarning
 
   - name: beautify
     image: quay.io/thegeeklab/alpine-tools
+    depends_on: [build]
     commands:
       - html-beautify -r -f 'public/**/*.html'
 
   - name: publish
     image: quay.io/thegeeklab/wp-s3-action
+    depends_on: [beautify]
     settings:
       access_key:
         from_secret: s3_access_key