fix: remove Docker container from CI, use setup-node instead

Eliminates Docker Hub rate limit by replacing container: node:22 with setup-node@v4.
Also fixes release workflow branch creation order.

Closes privilegedescalation/.github#14

Co-Authored-By: Paperclip <noreply@paperclip.ing>

.github/workflows/plugin-ci.yaml

@@ -12,13 +12,18 @@ on:
 jobs:
   ci:
     runs-on: local-ubuntu-latest
-    container: node:${{ inputs.node-version }}
     timeout-minutes: 10
 
     steps:
       - name: Checkout
         uses: actions/checkout@v4
 
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ inputs.node-version }}
+          cache: 'npm'
+
       - name: Install dependencies
         run: npm ci
 

.github/workflows/plugin-release.yaml

@@ -133,10 +133,10 @@ jobs:
         run: |
           VERSION="${{ inputs.version }}"
           BRANCH="release/v${VERSION}"
+          git checkout -b "$BRANCH"
           git add package.json package-lock.json artifacthub-pkg.yml
           git commit -m "release: v${VERSION}"
           git tag "v${VERSION}"
-          git checkout -b "$BRANCH"
           git push origin "$BRANCH" --tags
 
       - name: Install GitHub CLI