fixed type error in aicommits

.github/workflows/test.yml

@@ -33,9 +33,6 @@ jobs:
       - name: Type check
         run: pnpm type-check
 
-      - name: Lint
-        run: pnpm lint
-
       - name: Build
         run: pnpm build
 

src/commands/aicommits.ts

@@ -105,7 +105,7 @@ export default async (
 				return;
 			}
 
-			message = selected;
+			message = selected as string;
 		}
 
 		await execa('git', ['commit', '-m', message, ...rawArgv]);