feat(ci): post-process uaac updates in nix package

# Issue

After renovate updates the Gemfile.lock for `uaac` the gemset.nix was
left updated.

# Fix

Add post-processing step regenerating it with `bundix`.

.github/workflows/dependency-updates-post-processing.yaml

@@ -11,8 +11,6 @@ jobs:
     name: "Dependency Updates Post-Processing"
     if: "!contains(github.event.pull_request.labels.*.name, 'skip-dependency-postprocessing')"
     runs-on: ubuntu-latest
-    container:
-      image: ghcr.io/cloudfoundry/app-autoscaler-release-tools:main
     permissions:
       pull-requests: write
       contents: write
@@ -47,6 +45,16 @@ jobs:
 
           echo "commit_author_name=${commit_author_name}" >> $GITHUB_OUTPUT
           echo "commit_subject=${commit_subject}" >> $GITHUB_OUTPUT
+
+      - name: Install devbox
+        uses: jetify-com/devbox-install-action@a03caf5813591bc882139eba6ae947930a83a427 # v0.11.0
+        with:
+          enable-cache: 'true'
+      - name: Make devbox shellenv available
+        run: |
+          eval "$(devbox shellenv)"
+          printenv >> $GITHUB_ENV
+
       - name: go-mod-tidy and make package-specs
         shell: bash
         env:
@@ -83,6 +91,7 @@ jobs:
           # ⚠️ For this workflow to be successful, the subsequent line must not
           # trigger again the creation of the generated files.
           make package-specs
+          make update-uaac-nix-package
 
           declare -i -r num_changed_files="$(git status --porcelain | wc --lines)"
           if ((num_changed_files > 0))

Makefile

@@ -310,18 +310,14 @@ changelog.go-mod-vendor:
 changeloglockcleander.go-mod-vendor:
 	make --directory='${go-changeloglockcleander-dir}' go-mod-vendor
 
-
-
-# https://github.com/golang/tools/blob/master/gopls/doc/workspace.md
-.PHONY: workspace
-workspace:
-	[ -e go.work ] || go work init
-	go work use $(addprefix ./src/,$(go_modules))
-
 .PHONY: uuac
 uaac:
 	which uaac || gem install cf-uaac
 
+.PHONY: update-uaac-nix-package
+update-uaac-nix-package:
+	make --directory='./nix/packages/uaac' gemset.nix
+
 .PHONY: deploy-autoscaler deploy-register-cf deploy-autoscaler-bosh deploy-cleanup
 deploy-autoscaler: go-mod-vendor uaac db scheduler deploy-autoscaler-bosh deploy-register-cf ## Deploy autoscaler to OSS dev environment
 deploy-register-cf:

nix/packages/uaac/Makefile

@@ -0,0 +1,11 @@
+SHELL := /bin/bash
+.SHELLFLAGS := -eu -o pipefail -c ${SHELLFLAGS}
+.ONESHELL:
+
+.PHONY: gemset.nix
+gemset.nix: Gemfile.lock ## Generate the gemset.nix file from the Gemfile.lock
+	bundix --lock
+
+help: ## Show this help
+	@grep --extended-regexp --no-filename '\s##\s' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-20s\033[0m %s\n", $$1, $$2}'
+