feat: send merge request link in open merge requests

Author: SantiMA10

src/reactions/gitlab/merge-request-opened.ts

@@ -8,7 +8,7 @@ export class MergeRequestOpened extends Reaction<MergeRequestPayload> {
 	}
 
 	getTwitchChatMessage({ payload }: ReactionHandleOptions<MergeRequestPayload>): string {
-		return `${payload.user.username} just opened a merge request in ${payload.repository.homepage}`;
+		return `${payload.user.username} just opened a merge request in ${payload.object_attributes.url}`;
 	}
 
 	canHandle({ payload, event, config }: ReactionCanHandleOptions<MergeRequestPayload>): boolean {

test/reactions/gitlab/merge-request-opened.spec.ts

@@ -92,7 +92,7 @@ describe('MergeRequestOpened', () => {
 
 			expect(response).toEqual({
 				notified: true,
-				message: `${payload.user.username} just opened a merge request in ${payload.repository.homepage}`,
+				message: `${payload.user.username} just opened a merge request in ${payload.object_attributes.url}`,
 			});
 		});