fix: correct git config user.user to user.name in test workflow

Author: rcmdnk

.github/workflows/test.yml

@@ -119,7 +119,7 @@ jobs:
           fi
       - name: Set pseudo git user
         run: |
-          git config --global user.user "runner"
+          git config --global user.name "runner"
           git config --global user.email "runner@localhost"
       - uses: rcmdnk/python-action@v3
         with:
@@ -159,7 +159,7 @@ jobs:
     steps:
       - name: Set pseudo git user
         run: |
-          git config --global user.user "runner"
+          git config --global user.name "runner"
           git config --global user.email "runner@localhost"
       - uses: rcmdnk/python-action@v3
         with: