Update preview.yml

.github/workflows/preview.yml

@@ -43,8 +43,8 @@ jobs:
 
       - name: Archive MMC
         run: |
-          git config --global credential.helper store
-          git config --global credential.https://github.com.Xikaro USER_TOKEN_XIKARO
+          Username: Xikaro
+          Password: USER_TOKEN_XIKARO
           git submodule init
           git submodule update
           mkdir -p .minecraft