git: let git parse the commit.gpgsign boolean

extensions/git/src/git.ts

@@ -1411,13 +1411,17 @@ export class Repository {
 		return this.git.spawn(args, options);
 	}
 
-	async config(command: string, scope: string, key: string, value: any = null, options: SpawnOptions = {}): Promise<string> {
+	async config(command: string, scope: string, key: string, value: any = null, options: SpawnOptions = {}, type?: string): Promise<string> {
 		const args = ['config', `--${command}`];
 
 		if (scope) {
 			args.push(`--${scope}`);
 		}
 
+		if (type) {
+			args.push(`--${type}`);
+		}
+
 		args.push(key);
 
 		if (value) {