Workflow: Improves README updating process.

.github/workflows/update-readme.yml

@@ -29,13 +29,14 @@ jobs:
         cd .github
         go run .
 
-    - name: Configure Git
-      run: |
-        git config --global user.name 'github-actions[bot]'
-        git config --global user.email '27856297+dependabot-preview[bot]@users.noreply.github.com'
-
-    - name: Commit and Push Changes
+    - name: Commit and push changes
+      env:
+        GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
+        COMMIT_MSG: |
+          [README] Generated readmes.
       run: |
+        git config user.email "actions@github"
+        git config user.name "Github Actions"
+        git remote set-url origin https://x-access-token:${GITHUB_TOKEN}@github.com/${GITHUB_REPOSITORY}.git
         git add .
-        git diff --quiet && git diff --staged --quiet || \
-        (git commit -m "Update wallpapers READMEs [skip ci]" && git push)
+        git diff --quiet && git diff --staged --quiet || (git commit -m "${COMMIT_MSG}"; git push origin HEAD:${GITHUB_REF})