make sure git is activated before integration tests run

extensions/git/src/commands.ts

@@ -253,6 +253,11 @@ export class CommandCenter {
 		});
 	}
 
+	@command('git.activate')
+	async activate(): Promise<void> {
+		// noop
+	}
+
 	@command('git.setLogLevel')
 	async setLogLevel(): Promise<void> {
 		const createItem = (logLevel: LogLevel) => ({