Improve codeql action + fix test db clean

.github/workflows/codeql-analysis.yml

@@ -15,35 +15,26 @@ jobs:
     if: github.repository == 'photoview/photoview'
     runs-on: ubuntu-20.04
 
-    strategy:
-      fail-fast: false
-      matrix:
+    # strategy:
+    #   fail-fast: false
+    #   matrix:
         # Override automatic language detection by changing the below list
         # Supported options are ['csharp', 'cpp', 'go', 'java', 'javascript', 'python']
-        language: ['go', 'javascript']
+        # language: ['go', 'javascript']
         # Learn more...
         # https://docs.github.com/en/github/finding-security-vulnerabilities-and-errors-in-your-code/configuring-code-scanning#overriding-automatic-language-detection
 
     steps:
-    - name: Checkout repository
-      uses: actions/checkout@v2
-      with:
-        # We must fetch at least the immediate parents so that if this is
-        # a pull request then we can checkout the head.
-        fetch-depth: 2
+      - name: Checkout repository
+        uses: actions/checkout@v2
 
-    # If this run was triggered by a pull request event, then checkout
-    # the head of the pull request instead of the merge commit.
-    - run: git checkout HEAD^2
-      if: ${{ github.event_name == 'pull_request' }}
+      # Initializes the CodeQL tools for scanning.
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v1
+        with:
+          languages: go, javascript
+          # Run further tests
+          queries: security-extended, security-and-quality
 
-    # Initializes the CodeQL tools for scanning.
-    - name: Initialize CodeQL
-      uses: github/codeql-action/init@v1
-      with:
-        languages: ${{ matrix.language }}
-        # Run further tests
-        queries: security-extended, security-and-quality
-
-    - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v1
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v1