test: omit oauth2 username from git url

Author: andhreljaKern

.github/workflows/tf_plan_apply.yml

@@ -47,7 +47,7 @@ jobs:
         # github_token: ${{ secrets.GH_TOKEN }}
 
     - name: GitHub Configuration
-      run: git config --global url."https://oauth2:${{ secrets.GH_TOKEN }}@github.com".insteadOf https://github.com
+      run: git config --global url."https://${{ secrets.GH_TOKEN }}@github.com".insteadOf https://github.com
 
     # Initialize a new or existing OpenTofu working directory by creating initial files, loading any remote state, downloading modules, etc.
     - name: OpenTofu Init