Use the long form of a switch for git

We prefer using the long form of switches for command line programs to
improve maintainability and to better convey what is happening even if
someone is unfamiliar with the switches for a given program.

Co-authored-by: dav3r <david.redmin@trio.dhs.gov>

.github/workflows/update_software_list.yml

@@ -108,4 +108,4 @@ jobs:
           git merge origin/${{ needs.setup.outputs.testing_branch }}
           git push
       - name: Cleanup testing branch
-        run: git push -d origin ${{ needs.setup.outputs.testing_branch }}
+        run: git push --delete origin ${{ needs.setup.outputs.testing_branch }}