update codeql

Author: Michael Eder

.github/workflows/codeql-analysis.yml

@@ -31,10 +31,7 @@ jobs:
     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
+      
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL