Set shell: bash by default on all workflows

.github/workflows/__test-local-codeql.yml

@@ -34,6 +34,9 @@ on:
         description: The version of Go to install
         required: false
         default: '>=1.21.0'
+defaults:
+  run:
+    shell: bash
 jobs:
   test-local-codeql:
     strategy:
@@ -64,7 +67,6 @@ jobs:
           go-version: ${{ inputs.go-version || '>=1.21.0' }}
           cache: false
       - name: Fetch a CodeQL bundle
-        shell: bash
         env:
           CODEQL_URL: ${{ steps.prepare-test.outputs.tools-url }}
         run: |
@@ -76,7 +78,6 @@ jobs:
           languages: cpp,csharp,go,java,javascript,python,ruby
           tools: ./codeql-bundle-linux64.tar.zst
       - name: Build code
-        shell: bash
         run: ./build.sh
       - uses: ./../action/analyze
     env: