Update .gitlab-ci.yml

Run build jobs for commits pushed to master, use the tag body message,
remove job tags.

.gitlab-ci.yml

@@ -25,8 +25,6 @@ build:
   stage: build
   before_script:
     - sbt -v sbtVersion
-  tags:
-    - public
   script:
     - sbt assembly
   artifacts:
@@ -46,9 +44,7 @@ pages:
   stage: deploy
   before_script: []
   rules:
-    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH || $CI_COMMIT_BRANCH == "develop"
-  tags:
-    - public
+    - if: $CI_COMMIT_BRANCH == "master" || $CI_COMMIT_BRANCH == "develop"
   script:
     - rm -rf public
     - mkdir public
@@ -69,5 +65,5 @@ release:
       release-cli create \
         --name "Release $CI_COMMIT_TAG" \
         --tag-name "$CI_COMMIT_TAG" \
-        --description "$CI_COMMIT_TAG_MESSAGE" \
+        --description "$(git tag -l "${CI_COMMIT_TAG}" --format="%(contents:body)")" \
         --assets-link "{\"name\":\"${PACKAGE_NAME}\",\"link_type\":\"package\",\"url\":\"${PACKAGE_REGISTRY_URL}/${PACKAGE_NAME}\"}"