ci: trying to fetch LFS by themselves

.gitea/workflows/main.yaml

@@ -49,8 +49,19 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
         with:
-          lfs: true
-          token: ${{ secrets.token }}
+          lfs: false
+      - name: Checkout LFS
+        run: |
+          UrlBase=$GITHUB_SERVER_URL; \
+          UrlLfsBase=$UrlBase/${{ gitea.repository }}.git/info/lfs/objects; \
+          Auth=`/usr/bin/git config --get --local http.$UrlBase/.extraheader`; \
+          /usr/bin/git config --local http.${UrlLfsBase}/batch.extraheader "$Auth"; \
+          /usr/bin/git config --local http.${UrlLfsBase}/.extraheader ''
+
+          git config --local lfs.transfer.maxretries 1
+
+          /usr/bin/git lfs fetch    origin refs/remotes/origin/${{ gitea.ref_name }}
+          /usr/bin/git lfs checkout
       - name: Import resources and build solution
         run: |
           godot --headless --editor --build-solutions --quit --import --path $PWD