Generate release notes on release

[jiribenes]

Here's the release CI:

effekt-vscode/.github/workflows/deploy.yml

Lines 36 to 71 in dee5d14

	release:
	name: Create Release
	runs-on: ubuntu-latest
	needs: [build-vscode]
	steps:
	- name: Checkout code
	uses: actions/checkout@v4
	- name: Download VSCode artifact
	uses: actions/download-artifact@v4
	with:
	name: effekt-vscode
	path: distribution/
	- name: Create Release
	id: create_release
	uses: actions/create-release@v1
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	with:
	release_name: Release ${{ github.ref }}
	tag_name: ${{ github.ref }}
	body: Automatic release for ${{ github.ref }}
	draft: false
	prerelease: false
	- name: Upload vsix file
	id: upload_vsix
	uses: actions/upload-release-asset@v1
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	with:
	upload_url: ${{ steps.create_release.outputs.upload_url }}
	asset_path: ./distribution/effekt.vsix
	asset_name: effekt-vscode-extension.vsix
	asset_content_type: application/zip

Compare with the one in the main repo which uses gh which can then check the git tag (as a sanity check) and generate release notes from the merged PRs:

https://github.com/effekt-lang/effekt/blob/7c3d95164902a329428945b2e83b37327c5d2c4a/.github/workflows/deploy.yml#L66-L107