refactor: use buildx for multiarch container builds (#85)

.drone.yml

@@ -30,11 +30,10 @@ steps:
   - name: dryrun
     image: thegeeklab/drone-docker-buildx:20
     settings:
-      build_args:
-        - BUILD_VERSION=${DRONE_TAG%-*}
       dockerfile: Dockerfile
       dry_run: true
       repo: thegeeklab/${DRONE_REPO_NAME}
+      provenance: false
     when:
       ref:
         - refs/pull/**
@@ -72,14 +71,13 @@ steps:
   - name: publish-dockerhub
     image: thegeeklab/drone-docker-buildx:20
     settings:
-      build_args:
-        - BUILD_VERSION=${DRONE_TAG%-*}
       dockerfile: Dockerfile
       password:
         from_secret: docker_password
       repo: thegeeklab/${DRONE_REPO_NAME}
       username:
         from_secret: docker_username
+      provenance: false
     when:
       ref:
         - refs/heads/main
@@ -90,8 +88,6 @@ steps:
   - name: publish-quay
     image: thegeeklab/drone-docker-buildx:20
     settings:
-      build_args:
-        - BUILD_VERSION=${DRONE_TAG%-*}
       dockerfile: Dockerfile
       password:
         from_secret: quay_password
@@ -99,6 +95,7 @@ steps:
       repo: quay.io/thegeeklab/${DRONE_REPO_NAME}
       username:
         from_secret: quay_username
+      provenance: false
     when:
       ref:
         - refs/heads/main
@@ -197,6 +194,6 @@ depends_on:
 
 ---
 kind: signature
-hmac: 07c057dfd06b861ee2213ff0f86e517c52aea018985cd84d90c69c7d21483116
+hmac: bf2f69c79f19548c4a6ca12a9fa957eca2d197bd8a3853822f7b481d0d5308f7
 
 ...