Use default fetch-depth of 1

Author: petern48

.github/workflows/python-ci.yml

@@ -75,8 +75,6 @@ jobs:
 
     steps:
     - uses: actions/checkout@v4
-      with:
-        fetch-depth: 2
     - name: Install system dependencies
       run: sudo apt-get update && sudo apt-get install -y libkrb5-dev # for kerberos
     - name: Install