fix: pom.xml to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JAVA-ORGAPACHETOMCATEMBED-8383920
- https://snyk.io/vuln/SNYK-JAVA-ORGAPACHETOMCATEMBED-8383918
- https://snyk.io/vuln/SNYK-JAVA-ORGSPRINGFRAMEWORKSECURITY-8399269
- https://snyk.io/vuln/SNYK-JAVA-ORGSPRINGFRAMEWORKSECURITY-8399272
- https://snyk.io/vuln/SNYK-JAVA-ORGSPRINGFRAMEWORKSECURITY-8399273
- https://snyk.io/vuln/SNYK-JAVA-ORGSPRINGFRAMEWORKSECURITY-8399276
- https://snyk.io/vuln/SNYK-JAVA-ORGSPRINGFRAMEWORKSECURITY-8399278
- https://snyk.io/vuln/SNYK-JAVA-ORGKEYCLOAK-8400743

pom.xml

@@ -34,7 +34,7 @@
         <maven.compiler.target>${java.version}</maven.compiler.target>
         <org.mapstruct.version>1.6.2</org.mapstruct.version>
         <lombok.version>1.18.34</lombok.version>
-        <keycloak.version>22.0.5</keycloak.version>
+        <keycloak.version>26.0.0</keycloak.version>
         <log4j-api.version>2.17.1</log4j-api.version>
         <dossierfacile.version>0.0.1-SNAPSHOT</dossierfacile.version>
         <logback-encoder.version>7.4</logback-encoder.version>