chore(deps-dev): bump org.keycloak:keycloak-core from 25.0.6 to 26.0.0

Bumps [org.keycloak:keycloak-core](https://github.com/keycloak/keycloak) from 25.0.6 to 26.0.0.
- [Release notes](https://github.com/keycloak/keycloak/releases)
- [Commits](keycloak/keycloak@25.0.6...26.0.0)

---
updated-dependencies:
- dependency-name: org.keycloak:keycloak-core
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

pom.xml

@@ -112,7 +112,7 @@
     <assertj.core.version>3.26.3</assertj.core.version>
     <awaitility.version>4.2.2</awaitility.version>
     <approvaltests.version>24.7.0</approvaltests.version>
-    <keycloak.version>25.0.6</keycloak.version><!-- Used by CRD Generator integration tests for verifications -->
+    <keycloak.version>26.0.0</keycloak.version><!-- Used by CRD Generator integration tests for verifications -->
     <mockito.version>4.11.0</mockito.version>
     <mockito-inline.version>5.2.0</mockito-inline.version>
     <spock.version>2.4-M4-groovy-4.0</spock.version>