Revert "fix(ci): clone upstream locally instead of using repo-url for changelog"

This reverts commit 23283c375f.

.gitea/workflows/build-release.yml

@@ -94,17 +94,12 @@ jobs:
         env:
           TAG: ${{ inputs.tag }}
 
-      - name: Clone upstream for changelog
-        run: |
-          git clone --depth 50 --branch "${{ inputs.tag }}" \
-            https://github.com/EricLBuehler/mistral.rs.git upstream/
-
       - name: Generate changelog
         uses: https://git.lair.cafe/actions/rpm-changelog@v1
         with:
           spec: rpm/mistralrs.spec
           version: ${{ steps.version.outputs.version }}
-          source-dir: upstream/
+          repo-url: https://github.com/EricLBuehler/mistral.rs.git
 
       - name: Build RPM
         run: |