Release: refresh contributor credits for each release (#2880) (#2881)

About > Contributors still showed an old snapshot, because nothing
regenerated contributors/contributors.json before a release. Opt in to
the shared refresh from craft-common-actions: a read-only credits job
regenerates the snapshot for the release commit, and the shared release
workflow installs it before every source build. The snapshot is not
committed back.

.github/workflows/release.yml

@@ -18,6 +18,12 @@ concurrency:
   cancel-in-progress: false
 
 jobs:
+  # Regenerates contributors/contributors.json for the release commit; every build bundles it.
+  credits:
+    permissions:
+      contents: read
+      pull-requests: read
+    uses: storytold/craft-common-actions/.github/workflows/refresh-contributors.yml@main
   git-sources:
     name: Git dependencies come from storytold
     runs-on: ubuntu-latest
@@ -58,7 +64,7 @@ jobs:
           PY
 
   release:
-    needs: git-sources
+    needs: [git-sources, credits]
     permissions:
       # The reusable release workflow tags and uploads the draft release.
       contents: write
@@ -70,6 +76,7 @@ jobs:
       app-title: CADCraft
       craft-fonts-ref: b076417b5880bd4154bd22f00695b1d28c6bea83
       version: ${{ inputs.version }}
+      contributors-artifact: ${{ needs.credits.outputs.artifact-name }}
     secrets:
       APPLE_CERTIFICATE: ${{ secrets.APPLE_CERTIFICATE }}
       APPLE_CERTIFICATE_PASSWORD: ${{ secrets.APPLE_CERTIFICATE_PASSWORD }}

docs/contributors.md

@@ -8,7 +8,8 @@ the AI models named in `Co-Authored-By` trailers.
 - Two files, both **compiled into the binary** by the UI crate's `build.rs` (nothing is read from
   disk or the network at run time; the web build has them too):
   - [`contributors/contributors.json`](../contributors/contributors.json): commit stats per GitHub
-    username.
+    username. Release builds regenerate it for the release commit
+    (`.github/workflows/release.yml`, `credits` job); the copy in the repository is not updated.
   - [`contributors/people.toml`](../contributors/people.toml): the names people chose for
     themselves. **Each contributor adds only their own entry**, in their own PR.
 - Each contributor gets one line: GitHub username (always), display name (opt-in, or their synced