feat: add release template

Author: jsjoeio

.github/PULL_REQUEST_TEMPLATE/release_template.md

@@ -0,0 +1,15 @@
+This PR is to generate a new release of `code-server` at `0.0.0`
+
+## Screenshot
+
+TODO
+
+## TODOs
+
+- [ ] update the AUR package
+- [ ] upload assets to draft release
+- [ ] test locally
+- [ ] double-check github release tag is the commit with artifacts
+- [ ] publish release
+- [ ] merge PR
+- [ ] update the homebrew package