build: Run review steps in parallel (#1771)

.github/workflows/check.yml

@@ -10,6 +10,7 @@ jobs:
     -
       name: Checkout
       uses: actions/checkout@v7
+    - parallel:
       -
         name: Run ShellCheck
         uses: ludeeus/action-shellcheck@master

.github/workflows/review.yml

@@ -16,13 +16,13 @@ jobs:
     -
       name: Checkout
       uses: actions/checkout@v7
+    - parallel:
       -
         name: Spelling
         uses: reviewdog/action-misspell@v1
         with:
           locale: "US"
           level: warning
-          fail_level: error
           pattern: |
             *.md
             *.sh
@@ -42,7 +42,6 @@ jobs:
         uses: reviewdog/action-yamllint@v1
         with:
           level: warning
-          fail_level: error
           reporter: github-pr-review
           github_token: ${{ secrets.GITHUB_TOKEN }}
       -