Update workflow

.gitea/actions/pkgdev-manifest/action.yml

@@ -0,0 +1,23 @@
+name: "Construct manifests using pkgdev"
+description: "Construct manifest using pkgdev"
+runs:
+  using: composite
+  steps:
+    - name: Cache pkgdev
+      uses: actions/cache@v5
+      with:
+        path: |
+          ~/.cache/pkgcore
+          ~/.cache/pkgcheck
+          ~/.cache/distfiles
+        key: pkgdev
+    - name: Run pkgdev manifest
+      uses: docker://git.ratigorsk-12.ru/gentoo/pkgdev-docker:master
+      with:
+        args: >
+          -c '
+            set -euo pipefail
+
+            pmaint sync gentoo
+            pkgdev manifest -d ~/.cache/distfiles
+          '