Update spring core to v6.1.12 (#142)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

pom.xml

@@ -59,7 +59,7 @@
 
     <properties>
         <pac4j.version>6.0.6</pac4j.version>
-        <spring.version>6.1.11</spring.version>
+        <spring.version>6.1.12</spring.version>
         <java.version>17</java.version>
         <pmdVersion>6.55.0</pmdVersion>
         <lombok.version>1.18.34</lombok.version>