build(deps): bump org.keycloak:keycloak-core from 26.4.1 to 26.4.2 (#2640)

Bumps [org.keycloak:keycloak-core](https://github.com/keycloak/keycloak) from 26.4.1 to 26.4.2.
- [Release notes](https://github.com/keycloak/keycloak/releases)
- [Commits](keycloak/keycloak@26.4.1...26.4.2)

---
updated-dependencies:
- dependency-name: org.keycloak:keycloak-core
  dependency-version: 26.4.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]

embedded-keycloak/pom.xml

@@ -14,7 +14,7 @@
     <artifactId>embedded-keycloak</artifactId>
 
     <properties>
-        <keycloak.version>26.4.1</keycloak.version>
+        <keycloak.version>26.4.2</keycloak.version>
     </properties>
 
     <dependencies>