actions: support ent plugins in plugin update workflow (#28295)

.github/workflows/plugin-update.yml

@@ -39,12 +39,19 @@ jobs:
           cache: false # save cache space for vault builds: https://github.com/hashicorp/vault/pull/21764
           go-version-file: .go-version
 
-      - name: update plugin
+      - name: Update plugin
+        if: github.repository == 'hashicorp/vault'
         run: |
           go get "github.com/hashicorp/${{ inputs.plugin }}@v${{ inputs.version }}"
           go mod tidy
 
-      - name: detect changes
+      - name: Update Enterprise-only plugin
+        if: github.repository == 'hashicorp/vault-enterprise'
+        run: |
+          (cd vault_ent && go get "github.com/hashicorp/${{ inputs.plugin }}@v${{ inputs.version }}" && go mod tidy)
+          go mod tidy
+
+      - name: Detect changes
         run: |
           count=$(git status --porcelain=v1 2>/dev/null | wc -l)
           if [ "$count" -eq 0 ]; then
@@ -52,7 +59,7 @@ jobs:
             exit 1
           fi
 
-      - name: commit/push
+      - name: Commit and push
         run: |
           git config user.name hc-github-team-secure-vault-ecosystem
           git config user.email hc-github-team-secure-vault-ecosystem@users.noreply.github.com
@@ -72,8 +79,9 @@ jobs:
             gh pr create \
             --head "$VAULT_BRANCH" \
             --reviewer "$REVIEWER" \
+            --assignee "$REVIEWER" \
             --title "Update ${{ inputs.plugin }} to v${{ inputs.version }}" \
-            --body "This PR was generated by a GitHub Action. Full log: https://github.com/hashicorp/vault/actions/runs/${{ github.run_id }}"
+            --body "This PR was generated by a GitHub Action. Full log: https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}"
 
             echo "vault_pr_num=$(gh pr list --head "$VAULT_BRANCH" --json number -q '.[0].number')" >> "$GITHUB_OUTPUT"
             echo "vault_pr_url=$(gh pr list --head "$VAULT_BRANCH" --json url -q '.[0].url')" >> "$GITHUB_OUTPUT"