test: Add minimal Fedora runner test workflow

.forgejo/workflows/rpm-build.yml

@@ -21,7 +21,7 @@ on:
   workflow_dispatch:
 
 jobs:
-  rpm-build:
+  rpmbuild:
     name: Build RPM Package
     runs-on: fedora-latest
 

.forgejo/workflows/test-fedora.yml

@@ -0,0 +1,97 @@
+name: Test Fedora Runner
+
+concurrency:
+  group: "test-fedora-${{ github.ref }}"
+  cancel-in-progress: true
+
+on:
+  workflow_dispatch:
+  push:
+    paths:
+      - '.forgejo/workflows/test-fedora.yml'
+
+jobs:
+  test:
+    runs-on: fedora-latest
+    steps:
+      - name: Detect Fedora version
+        id: fedora
+        run: |
+          VERSION=$(rpm -E %fedora)
+          echo "version=$VERSION" >> $GITHUB_OUTPUT
+          echo "Fedora version: $VERSION"
+
+      - name: Test basic command
+        run: |
+          echo "Fedora runner works!"
+          rpm -E %fedora
+          echo "Runner is alive and executing commands"
+
+      - name: Checkout repository with full history
+        uses: https://code.forgejo.org/actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Verify checkout
+        run: |
+          echo "Checking if checkout worked:"
+          ls -la
+          echo "Git status:"
+          git status
+
+      - name: Cache DNF packages
+        uses: https://code.forgejo.org/actions/cache@v4
+        with:
+          path: |
+            /var/cache/dnf
+            /var/cache/yum
+          key: dnf-fedora${{ steps.fedora.outputs.version }}-${{ hashFiles('fedora/continuwuity.spec.rpkg') }}-v1
+          restore-keys: |
+            dnf-fedora${{ steps.fedora.outputs.version }}-
+
+      - name: Test cache action with step output
+        uses: https://code.forgejo.org/actions/cache@v4
+        with:
+          path: /tmp/test-cache
+          key: test-fedora${{ steps.fedora.outputs.version }}-${{ github.sha }}
+          restore-keys: |
+            test-fedora${{ steps.fedora.outputs.version }}-
+            test-
+
+      - name: Verify cache
+        run: |
+          echo "Cache test completed"
+          echo "Creating test cache file"
+          mkdir -p /tmp/test-cache
+          echo "Test data $(date)" > /tmp/test-cache/data.txt
+          cat /tmp/test-cache/data.txt
+
+      - name: Test sccache action
+        uses: https://github.com/mozilla-actions/sccache-action@v0.0.9
+        with:
+          token: ${{ secrets.GH_PUBLIC_RO }}
+
+      - name: Verify sccache
+        run: |
+          echo "Sccache test completed"
+          which sccache || echo "sccache not found"
+
+      - name: Install build dependencies
+        run: |
+          dnf install -y --setopt=keepcache=1 \
+            wget \
+            rpm-build \
+            rpmdevtools \
+            rpkg \
+            cargo-rpm-macros \
+            systemd-rpm-macros \
+            clang \
+            liburing-devel \
+            rust \
+            cargo \
+            gcc \
+            gcc-c++ \
+            make \
+            openssl-devel \
+            pkg-config \
+            python3-pip