build(deps): bump org.keycloak:keycloak-core from 26.3.0 to 26.3.1 (#2470)

Bumps [org.keycloak:keycloak-core](https://github.com/keycloak/keycloak) from 26.3.0 to 26.3.1.
- [Release notes](https://github.com/keycloak/keycloak/releases)
- [Commits](keycloak/keycloak@26.3.0...26.3.1)

---
updated-dependencies:
- dependency-name: org.keycloak:keycloak-core
  dependency-version: 26.3.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

embedded-keycloak/pom.xml

@@ -13,7 +13,7 @@
     <artifactId>embedded-keycloak</artifactId>
 
     <properties>
-        <keycloak.version>26.3.0</keycloak.version>
+        <keycloak.version>26.3.1</keycloak.version>
     </properties>
 
     <dependencies>