Fix CI YAML syntax error in build-apk job

- Separated checkout step from dependency installation step
- Each step must have either 'uses:' OR 'run:', not both
- Added proper 'name:' field for install dependencies step

.github/workflows/ci.yml

@@ -141,6 +141,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
+      - name: Install build dependencies
         run: |
           apk add --no-cache rust cargo musl-dev openssl-dev git abuild
       - name: Build APK package