ci: add rm /docs and publish --force

.gitlab-ci.yml

@@ -55,6 +55,7 @@ dry-run:
   stage: publish
   image: google/dart
   script:
+    - rm -rf ./docs
     - dart pub get
     - dart pub publish --dry-run
 
@@ -62,6 +63,7 @@ pub-dev:
   stage: publish
   image: google/dart
   script:
+    - rm -rf ./docs
     - |
       if [ -z "${PUB_DEV_PUBLISH_ACCESS_TOKEN}" ]; then
         echo "Missing PUB_DEV_PUBLISH_ACCESS_TOKEN environment variable"
@@ -93,6 +95,6 @@ pub-dev:
       }
       EOF
     - dart pub get
-    - dart pub publish
+    - dart pub publish --force
   rules:
     - if: $CI_COMMIT_TAG