chore: tagRelease.sh: bump to 1.9.3 in release-1.9 branch [skip-build] [skip-e2e] (#190)

Signed-off-by: RHDH Build (rhdh-bot) <rhdh-bot@redhat.com>

Author: rhdh-bot

docs/rhdh-local-guide/container-image-guide.md

@@ -51,7 +51,7 @@ To use the [official release of RHDH](https://catalog.redhat.com/software/contai
 NOTE: Using official builds also [requires authentication with the registry](https://access.redhat.com/articles/RegistryAuthentication). See also the section below `Configuring registry credentials` to make this authentication pervasive.
 
 ```sh
-RHDH_IMAGE=registry.redhat.io/rhdh/rhdh-hub-rhel9:1.9.2
+RHDH_IMAGE=registry.redhat.io/rhdh/rhdh-hub-rhel9:1.9.3
 ```
 
 #### Using image digests