Update wiki action

Author: coisa

.github/workflows/wiki.yml

@@ -59,15 +59,15 @@ jobs:
                     fi
 
             -   name: Add and commit files
-                if: ${{ steps.changes.outputs.changed != 'true' }}
+                if: ${{ steps.changes.outputs.changed == 'true' }}
                 run: |
                     git add .
                     git config --global user.email "github-actions[bot]@users.noreply.github.com"
                     git config --global user.name "github-actions[bot]"
                     git commit -m "Update submodules at $(date "+DATE: %Y-%m-%d TIME: %H:%M:%S")"
 
             -   name: Push changes
-                if: ${{ steps.changes.outputs.changed != 'true' }}
+                if: ${{ steps.changes.outputs.changed == 'true' }}
                 uses: ad-m/github-push-action@master
                 with:
                     github_token: ${{ github.token }}