Implement GiteaProvider as GitProvider to fetch repository releases

[aldy505]

The GitProvider interface provides a function to call the Gitea API for getting a specific repository's release data. With undici installed and since we're not using any Gitea API SDK (because we only need this single endpoint), implement the getReleases function to do that.

adelite/src/git/GiteaProvider.ts

Lines 4 to 8 in dff5d23

	export class GiteaProvider implements BaseGitProvider {
	getReleases(owner: string, repo: string): Promise<Release[]> {
	// See https://docs.gitea.com/api/1.20/#tag/repository/operation/repoListReleases
	throw new Error("Method not implemented.");
	}