fix: remove unnecessary version bump/PR step from prerelease workflow

The version is bumped manually prior to release, so the automated
version bump and PR creation in the publish job is unnecessary and
was causing the workflow to report as failed despite successful publishing.

Author: RomneyDa

.github/workflows/preview.yaml

@@ -125,22 +125,10 @@ jobs:
     needs:
       - build
     if: github.event_name != 'workflow_dispatch' || github.event.inputs.publish_build == 'true'
-    permissions:
-      contents: write
-      pull-requests: write
     steps:
-      # 0. Setup git
       - name: Checkout
         uses: actions/checkout@v6
 
-      - name: Set up Git
-        run: |
-          git config --local user.email "action@github.com"
-          git config --local user.name "GitHub Action"
-
-      - name: Pull latest changes from release
-        run: git fetch origin ${{ github.ref }} && git checkout ${{ github.ref }}
-
       # 1. Download the artifacts
       - uses: actions/download-artifact@v8
         with:
@@ -163,52 +151,3 @@ jobs:
           cd extensions/vscode
           npx ovsx publish --pre-release -p ${{ secrets.VSX_REGISTRY_TOKEN }} --packagePath ../../vsix-artifacts/*.vsix
 
-      # 4. Create PR with version bump
-      - name: Setup Node.js
-        uses: actions/setup-node@v6
-        with:
-          node-version-file: ".nvmrc"
-
-      - name: Create PR branch
-        run: |
-          BRANCH_NAME="chore/bump-vscode-version-$(date +%Y%m%d-%H%M%S)"
-          git checkout -b $BRANCH_NAME
-          echo "BRANCH_NAME=$BRANCH_NAME" >> $GITHUB_ENV
-
-      - name: Bump version in package.json
-        run: |
-          cd extensions/vscode
-          npm version patch --no-git-tag-version
-          VERSION=$(node -p "require('./package.json').version")
-          echo "NEW_VERSION=$VERSION" >> $GITHUB_ENV
-
-      - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v8
-        with:
-          token: ${{ secrets.CI_GITHUB_TOKEN }}
-          commit-message: "chore: bump vscode extension version to ${{ env.NEW_VERSION }}"
-          title: "chore: bump vscode extension version to ${{ env.NEW_VERSION }}"
-          body: |
-            Automated PR to bump the VS Code extension version after successful pre-release publication.
-
-            - Bumped version in extensions/vscode/package.json to ${{ env.NEW_VERSION }}
-          branch: ${{ env.BRANCH_NAME }}
-          base: main
-          delete-branch: true
-
-      # 5. Update version in package.json
-      # - name: Update version in package.json
-      #   run: |
-      #     cd extensions/vscode
-      #     npm version patch
-      # - name: Commit changes
-      #   run: |
-      #     git config --local user.email "action@github.com"
-      #     git config --local user.name "GitHub Action"
-      #     git commit -am "💚 Update package.json version [skip ci]"
-
-      # - name: Push changes
-      #   uses: ad-m/github-push-action@master
-      #   with:
-      #     github_token: ${{ secrets.GITHUB_TOKEN }}
-      #     branch: ${{ github.ref }}