add runner tag

Author: joy-ciou

.gitlab-ci.yml

@@ -12,7 +12,8 @@ stages:
 rspec:
   stage: rspec
   image: ruby:3.2.2
-  RUNNER_TAG: "arm64"
+  tags:
+    - arm64
   script:
     - bundle install
     - rspec spec
@@ -22,7 +23,8 @@ rspec:
 to_gem:
   stage: publish
   image: ruby:3.2.2
-  RUNNER_TAG: "arm64"
+  tags:
+    - arm64
   script:
     - mkdir -p ~/.gem
     - touch ~/.gem/credentials