switch from AWS to docker hub for golang image

.gitlab-ci.yml

@@ -28,7 +28,7 @@ build-application-binary:
   stage: build
   needs: []
   parallel: !reference [ .parallel, parallel ]
-  image: public.ecr.aws/docker/library/golang:1.23.4
+  image: golang:1.23.4
   script:
   - CGO_ENABLED=0 go build -ldflags="-s -w" -o vncproxy-${GOOS}-${GOARCH} ./
   - "if [ \"${GOOS}\" = \"windows\" ]; then