fix: remove unnecessary pnpm prune step from CI

The --no-dependencies flag in vsce package already skips dependency validation, so pruning dev dependencies is not needed. This also avoids the issue where vscode:prepublish script needs TypeScript which gets removed by prune.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: AlexStrNik

.github/workflows/package.yml

@@ -31,9 +31,6 @@ jobs:
       - name: Compile
         run: pnpm run compile
 
-      - name: Remove dev dependencies
-        run: pnpm prune --prod
-
       - name: Install vsce
         run: pnpm add -g @vscode/vsce