deps: update keycloak bitnamichart to 25.2.0

[hisImminence]

Which problem does the PR fix?

part of https://github.com/camunda/team-distribution/issues/434

What's in this PR?

Checklist

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• In the repo's root dir, run make go.update-golden-only.
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[jessesimpson36]

> helm search repo bitnami/keycloak -l
NAME            	CHART VERSION	APP VERSION	DESCRIPTION                                       
bitnami/keycloak	25.2.0       	26.3.3     	Keycloak is a high performance Java-based ident...

We need to upgrade to 26.3.3 for app version and 25.2.0 for chart version, otherwise the image mismatch between enterprise and legacy will cross a breaking-change boundary between 24.x and 25.x of the chart versions.

bitnami/keycloak	25.2.0       	26.3.3     	Keycloak is a high performance Java-based ident...
bitnami/keycloak	25.1.2       	26.3.3     	Keycloak is a high performance Java-based ident...
bitnami/keycloak	25.1.1       	26.3.2     	Keycloak is a high performance Java-based ident...
bitnami/keycloak	25.1.0       	26.3.2     	Keycloak is a high performance Java-based ident...
bitnami/keycloak	25.0.2       	26.3.2     	Keycloak is a high performance Java-based ident...
bitnami/keycloak	25.0.1       	26.3.2     	Keycloak is a high performance Java-based ident...
bitnami/keycloak	25.0.0       	26.3.2     	Keycloak is a high performance Java-based ident...
bitnami/keycloak	24.9.0       	26.3.2     	Keycloak is a high performance Java-based ident...
bitnami/keycloak	24.8.1       	26.3.2     	Keycloak is a high performance Java-based ident...
bitnami/keycloak	24.8.0       	26.3.1     	Keycloak is a high performance Java-based ident...
bitnami/keycloak	24.7.7       	26.3.1     	Keycloak is a high performance Java-based ident...
bitnami/keycloak	24.7.6       	26.3.1     	Keycloak is a high performance Java-based ident...

[hisImminence]

We will not update the chart as the latest update to images 26.3.2 caused issues. We need to investigate further once prio is given camunda/keycloak#412. Closing the PR for now.