chore(api/Dockerfile): Enable corepack and prepare Yarn 4.9.1

Author: Nudelsuppe42

apps/api/Dockerfile

@@ -18,6 +18,9 @@ WORKDIR /app
 
 # Install dependencies
 COPY --from=builder /app/out/json/ .
+# Enable corepack to use the correct Yarn version
+RUN corepack enable
+RUN corepack prepare yarn@4.9.1 --activate
 RUN yarn install
 
 # Build the project

apps/api/src/controllers/ShowcaseController.ts

@@ -31,8 +31,6 @@ class ShowcaseController {
 		res.send(showcases);
 	}
 
-	// dd
-
 	public async getAllShowcases(req: Request, res: Response) {
 		const errors = validationResult(req);
 		if (!errors.isEmpty()) {