Add Forgejo Actions workflow to build RPMs with mock

- Build all three spec files on push via matrix strategy
- Use mock (alma+epel-10-x86_64) for clean isolated buildroot
- Inject Forgejo Package Registry as DNF repo inside mock chroot
- Derive exact SRPM path from rpmspec to avoid stale package matches
- Upload built RPMs to Forgejo Package Registry
- Clean up mock-results after each job (always)
- Bump all specs to 6.6.4-1 and fix Source0 tag (drop v-prefix)

.forgejo/workflows/build-rpms.yml

@@ -45,14 +45,18 @@ jobs:
             --define "_topdir ${HOME}/rpmbuild" \
             --define "_disable_source_fetch 0" \
             ${{ matrix.spec }}
+          PKGNAME=$(rpmspec -q --srpm --queryformat "%{NAME}-%{VERSION}-%{RELEASE}.src.rpm" ${{ matrix.spec }})
+          echo "SRPM_PATH=${HOME}/rpmbuild/SRPMS/${PKGNAME}" >> "$GITHUB_ENV"
 
       - name: Build RPM with mock
         run: |
-          SRPM=$(find "${HOME}/rpmbuild/SRPMS" -name "*.src.rpm" | head -1)
+          FORGEJO_URL="${{ github.server_url }}"
+          OWNER="${{ github.repository_owner }}"
           mock \
             --root alma+epel-10-x86_64 \
             --resultdir "${HOME}/mock-results" \
-            --rebuild "$SRPM"
+            --config-opts="config_opts['dnf.conf'] += '[sonicde-rpm]\nname=SonicDE RPM\nbaseurl=${FORGEJO_URL}/api/packages/${OWNER}/rpm/el10\nenabled=1\ngpgcheck=0\npriority=90\n'" \
+            --rebuild "${{ env.SRPM_PATH }}"
 
       - name: Upload RPMs to Forgejo Package Registry
         run: |
@@ -68,3 +72,7 @@ jobs:
               --upload-file "$rpm" \
               "${FORGEJO_URL}/api/packages/${OWNER}/rpm/upload"
           done
+
+      - name: Clean up mock results
+        if: always()
+        run: rm -rf "${HOME}/mock-results"