use reviewdog/action-setup instead of syncing scripts

Using nested GitHub Actions was not the root cause of
#35 in my
understanding.

Author: haya14busa

.github/depup.sh

@@ -17,11 +17,3 @@ jobs:
           version_name: REVIEWDOG_VERSION
           repo: reviewdog/reviewdog
           labels: "bump:minor"
-
-  setup:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-      - run: ./.github/depup.sh
-      - name: commit and create a pull request
-        uses: shogo82148/actions-commit-and-create-pr@b1322fe9da4037e9720e34ea221997cffcd3498d # v1.1.4

.github/workflows/depup.yml

@@ -51,17 +51,9 @@ inputs:
 runs:
   using: "composite"
   steps:
-    - run: |
-        set -euo pipefail
-        . "$GITHUB_ACTION_PATH/install.sh"
-      shell: bash
-      env:
-        REVIEWDOG_VERSION: v0.21.0
-        REVIEWDOG_TEMPDIR: ${{ runner.temp }}
-    - run: |
-        set -euo pipefail
-        . "$GITHUB_ACTION_PATH/check-installed.sh"
-      shell: bash
+    - uses: reviewdog/action-setup@d8edfce3dd5e1ec6978745e801f9c50b5ef80252 # v1.4.0
+      with:
+        reviewdog_version: v0.21.0
     - run: |
         set -euo pipefail
         . "$GITHUB_ACTION_PATH/script.sh"