stylix: add generated all-maintainers file (#1654)

Link: https://github.com/nix-community/stylix/pull/1654

Co-authored-by: Matt Sturgeon <matt@sturgeon.me.uk>
Reviewed-by: Matt Sturgeon <matt@sturgeon.me.uk>
Co-authored-by: NAHO <90870942+trueNAHO@users.noreply.github.com>
Reviewed-by: NAHO <90870942+trueNAHO@users.noreply.github.com>

.github/workflows/update-flake.yml

@@ -61,6 +61,14 @@ jobs:
             --flake ./flake/dev \
             --option commit-lock-file-summary "flake: update dev inputs"
 
+          # The nixpkgs maintainers may have changed, so keep all-maintainers
+          # in sync
+          nix run .#all-maintainers
+
+          git add stylix/generated/all-maintainers.nix
+          git commit --message "stylix: update all-maintainers list" ||
+            echo "generated/all-maintainers.nix has no changes"
+
       - name: create pull request
         env:
           GH_TOKEN: ${{ steps.generate-token.outputs.token }}