ci: fix wiki repository

Author: RedVortexDev

.github/workflows/build.yml

@@ -26,7 +26,7 @@ jobs:
       - name: Checkout Wiki
         uses: actions/checkout@v3
         with:
-          repository: ${{ github.repository }}.wiki
+          repository: ${{ github.repository }}.wiki.git
           path: wiki
           token: ${{ secrets.GITHUB_TOKEN }}
           fetch-depth: 0