[FLINK-36545] Fix uid/gid mixup when generating the OLM bundle

The docker container was being run with the uid/gid arguments switched about.
diff --git a/tools/olm/generate-olm-bundle.sh b/tools/olm/generate-olm-bundle.sh
index e632804..3ed2562 100755
--- a/tools/olm/generate-olm-bundle.sh
+++ b/tools/olm/generate-olm-bundle.sh
@@ -39,8 +39,8 @@
 
 # Generate bundle in a docker container
 generate_olm_bundle() {
-  uid="$(id -g ${USER})"
-  gid="$(id -u ${USER})"
+  uid="$(id -u ${USER})"
+  gid="$(id -g ${USER})"
   cp -r ../../helm ./
   docker build -t "${OLMTOOL_IMG}" -f utils.Dockerfile ${BASEDIR}
   docker run --user="${uid}:${gid}" -v ${BASEDIR}:/olm  "${OLMTOOL_IMG}"