add publish step to gh actions

.github/workflows/main.yml

@@ -58,4 +58,39 @@ jobs:
       - uses: actions/upload-artifact@v2
         with:
           path: ${{ env.VSIX_PATH }}
-          name: ${{ env.VSIX_NAME }}
+          name: ${{ env.VSIX_NAME }}
+  release:
+    runs-on: ubuntu-latest
+    needs: package
+    if: startsWith(github.ref, 'refs/tags/v')
+    name: Release
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2
+        with:
+          node-version: "14"
+      - run: npm install
+      - run: npm install -g vsce
+      - run: vsce package
+      - run: echo "VSIX_PATH=$(find . -maxdepth 1 -type f -iname "*.vsix" | head -1)" >> $GITHUB_ENV
+      - run: echo "VSIX_NAME=$(basename $(find . -maxdepth 1 -type f -iname "*.vsix" | head -1))" >> $GITHUB_ENV
+      - uses: actions/create-release@v1
+        id: create_release
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          VSCE_PAT: ${{ secrets.VSCE_PAT }}
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: ${{ github.ref }}
+          body: See [CHANGE LOG](https://github.com/maksim77/gitcheck/blob/main/CHANGELOG.md) for details.
+          draft: false
+          prerelease: false
+      - uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: ${{ env.VSIX_PATH }}
+          asset_name: ${{ env.VSIX_NAME }}
+          asset_content_type: application/zip
+      - run: vsce publish