fix(ci): pin lint-unit to 5.0.8, restore actionshub/chef-install for Dokken

The shared workflow 5.0.8 uses Ruby/Bundler instead of chef-install for lint-unit.

Dokken still needs Chef's mixlib-install to resolve 'chef' product in containers.

Author: damacus

.github/workflows/ci.yml

@@ -9,7 +9,7 @@ name: ci
 
 jobs:
   lint-unit:
-    uses: sous-chefs/.github/.github/workflows/lint-unit.yml@main
+    uses: sous-chefs/.github/.github/workflows/lint-unit.yml@5.0.8
     permissions:
       actions: write
       checks: write
@@ -40,11 +40,12 @@ jobs:
     steps:
       - name: Check out code
         uses: actions/checkout@v6
-      - name: Install Workstation
-        uses: sous-chefs/.github/.github/actions/install-workstation@main
+      - name: Install Chef
+        uses: actionshub/chef-install@main
       - name: Dokken
         uses: actionshub/test-kitchen@3.0.0
         env:
+          CHEF_LICENSE: accept-no-persist
           KITCHEN_LOCAL_YAML: kitchen.dokken.yml
         with:
           suite: ${{ matrix.suite }}