ci/rpm: use the old spec file for f31

Prior this commit the rpm for fedora 31 was built using the new spec file.
The old spec file should be used for that Fedora version.

.github/workflows/tests.yml

@@ -46,13 +46,13 @@ jobs:
       - name: Run unit tests
         run: go test -v ./...
 
-  rpm_build:
-    name: "📦 RPM"
+  old_rpm_build:
+    name: "📦 RPM (golang-github-osbuild-composer)"
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
-        fedora_release: ["31", "32", "rawhide"]
+        fedora_release: ["31"]
     container:
       image: "docker.io/library/fedora:${{ matrix.fedora_release }}"
     steps:
@@ -70,6 +70,47 @@ jobs:
       - name: "🛒 Install RPM build dependencies"
         run: dnf -y builddep golang-github-osbuild-composer.spec
 
+      - name: "🛠️ Build RPMs"
+        run: |
+          mkdir rpms
+          make old-srpm
+          cp -av rpmbuild/SRPMS/*.rpm rpms/
+          make old-rpm
+          cp -av rpmbuild/RPMS/*/*.rpm rpms/
+
+      - name: "📤 Upload artifacts"
+        uses: actions/upload-artifact@v1
+        with:
+          name: rpms
+          path: rpms/
+
+      - name: "🔎 Test RPM installation"
+        run: dnf -y install $(ls rpms/*.x86_64.rpm)
+
+  rpm_build:
+    name: "📦 RPM (osbuild-composer)"
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        fedora_release: ["32", "rawhide"]
+    container:
+      image: "docker.io/library/fedora:${{ matrix.fedora_release }}"
+    steps:
+      - name: "📥 Prepare container"
+        run: |
+          echo "fastestmirror=1" >> /etc/dnf/dnf.conf
+          echo "install_weak_deps=0" >> /etc/dnf/dnf.conf
+          rm -fv /etc/yum.repos.d/fedora*modular*
+          dnf -y upgrade
+          dnf -y install dnf-plugins-core findutils git make rpm-build rpmdevtools
+
+      - name: "🗄️ Clone the repository"
+        uses: actions/checkout@v2
+
+      - name: "🛒 Install RPM build dependencies"
+        run: dnf -y builddep osbuild-composer.spec
+
       - name: "🛠️ Build RPMs"
         run: |
           mkdir rpms