ci: use actionlint and problem matchers (#4116)

.github/workflows/ci-homebrew.yml

@@ -73,9 +73,13 @@ jobs:
           brew install python3
 
       - name: Configure formula
+        env:
+          HEAD_REF: ${{ github.head_ref }}
+          PR_HEAD_REF: ${{ github.event.pull_request.head.ref }}
+          PR_DEFAULT_BRANCH: ${{ github.event.pull_request.head.repo.default_branch }}
         run: |
           # variables for formula
-          branch="${{ github.head_ref }}"
+          branch="${{ env.HEAD_REF }}"
           build_version=${{ inputs.release_version }}
           commit=${{ inputs.release_commit }}
 
@@ -96,9 +100,9 @@ jobs:
           else
             echo "This is a PR event"
             clone_url=${{ github.event.pull_request.head.repo.clone_url }}
-            branch="${{ github.event.pull_request.head.ref }}"
-            default_branch="${{ github.event.pull_request.head.repo.default_branch }}"
-            tag="${{ github.event.pull_request.head.ref }}"
+            branch="${{ env.PR_HEAD_REF }}"
+            default_branch="${{ env.PR_DEFAULT_BRANCH }}"
+            tag="${{ env.PR_HEAD_REF }}"
           fi
           echo "Branch: ${branch}"
           echo "Clone URL: ${clone_url}"
@@ -143,8 +147,9 @@ jobs:
           export DISPLAY=:1
           Xvfb ${DISPLAY} -screen 0 1024x768x24 &
 
-          echo "DISPLAY=${DISPLAY}" >> $GITHUB_ENV
+          echo "DISPLAY=${DISPLAY}" >> "${GITHUB_ENV}"
 
+      - run: echo "::add-matcher::.github/matchers/gcc-strip3.json"
       - name: Validate Homebrew Formula
         id: test
         if: matrix.release != true
@@ -156,6 +161,7 @@ jobs:
           publish: false
           token: ${{ secrets.GH_TOKEN }}
           validate: true
+      - run: echo "::remove-matcher owner=gcc-strip3::"
 
       - name: Setup python
         id: python