use dockerfile action

Resolves: #15
Resolves: #9
Signed-off-by: Arthur Zamarin <arthurzam@gentoo.org>

action.yml

@@ -10,5 +10,27 @@ inputs:
     required: false
     default: pkgcheck>=0.10.3
 runs:
-  using: node16
-  main: dist/index.js
+  using: composite
+  steps:
+    - name: Cache pkgcheck
+      uses: actions/cache@v3
+      with:
+        path: |
+          ~/.cache/pkgcore
+          ~/.cache/pkgcheck
+        key: pkgcheck
+
+    - name: Run pkgcheck
+      uses: docker://ghcr.io/pkgcore/pkgcheck:latest
+      with:
+        entrypoint: /usr/bin/bash
+        args: >
+          -c "
+          runner() { echo \"::group::${1}\"; shift 1; \"$@\"; local exit=$?; echo; echo \"::endgroup::\"; return $exit; } ;
+          runner \"Sync gentoo repo\" pmaint sync gentoo || exit 1 ;
+          runner \"Update repo metadata\" pmaint regen --dir ~/.cache/pkgcheck/repos . ;
+          runner \"Run pkgcheck\" pkgcheck --color y ci --failures ~/failures.json --exit GentooCI ${{ inputs.args }} ;
+          scan_exit_status=$? ;
+          pkgcheck replay --color y ~/failures.json ;
+          exit $scan_exit_status
+          "