[ENHANCEMENT] Keycloak v26 is deployed

[emulbreh]

Related links
Identity issue adding in app level support

Describe the use case:
To match our versioning policy with regards to Keycloak we should upgrade the chart version for Keycloak to include the Keycloak v26 release.

Desired outcome and acceptance tests:

• Keycloak version 26 is deployed with helm charts
• I can upgrade from a deployment with Keycloak v25 (current deloyment) to the new Keycloak v26 version

[aabouzaid]

@emulbreh Thanks for opening this issue. +1:

A question, is that for Camunda 8.7 release or 8.8?

[emulbreh]

@emulbreh Thanks for opening this issue. +1:

A question, is that for Camunda 8.7 release or 8.8?

That's for 8.7. It came up in an incident today and @Ben-Sheppard confirmed that we're going to support 26 in 8.7 as we're committed to support the last two version of Keycloak at the time of release.