ci: fix quoting errors and rules

.gitlab-ci.yml

@@ -3,9 +3,8 @@ variables:
 
 .prepare:
   before_script:
-    - export
-    - git config user.email $GITLAB_USER_EMAIL
-    - git config user.name $GITLAB_USER_NAME
+    - git config user.email "$GITLAB_USER_EMAIL"
+    - git config user.name "$GITLAB_USER_NAME"
     - git remote set-url origin "https://gitlab-ci-token:$GITLAB_TOKEN@$CI_SERVER_HOST/$CI_PROJECT_PATH.git"
     - git checkout $CI_COMMIT_BRANCH
 
@@ -55,7 +54,7 @@ build-version-stable:
   rules:
     - if: $CI_COMMIT_TAG
       when: never
-    - if: $CI_COMMIT_BRANCH == "master"
+    - if: $CI_COMMIT_BRANCH == "master" && $CI_COMMIT_TITLE !~ /v[0-9]+\.[0-9]+\.[0-9]+(-.+)?/
 
 build-publish-stable:
   image: node:${NODE_VERSION}