Keycloak upgrade with monitoring fix

Big Bang

Update keycloak release tag and test-values and example configs.

Package Merge Request

Package Changes

• Keycloak patch upgrade from 20.0.2 to 20.0.3
• fixes for prometheus monitoring

Package MR

big-bang/product/packages/keycloak!97 (merged)

For Issue

Closes big-bang/product/packages/keycloak#81 (closed)

docs/assets/configs/example/keycloak-prod-values.yaml

@@ -125,7 +125,8 @@ addons:
               quarkus.kc-routing-redirects.path-prefixes./oauth/authorize=/auth/realms/YOUR-REALM-NAME/protocol/openid-connect/auth
               quarkus.kc-routing-redirects.path-filters./api/v4/user=/auth/realms/YOUR-REALM-NAME/protocol/openid-connect/userinfo
               quarkus.kc-routing-redirects.path-filters./oauth/token=/auth/realms/YOUR-REALM-NAME/protocol/openid-connect/token
-
+              # block /metrics from being externally exposed
+              quarkus.kc-routing-redirects.urls./metrics=/auth/realms/baby-yoda/account
 
       # This config includes an example of injecting a custom theme jar on startup
       # Instructions for building a custom theme can be found in the Big Bang Keycloak repository