Bump jmh.version from 1.30 to 1.31

Bumps `jmh.version` from 1.30 to 1.31.

Updates `jmh-core` from 1.30 to 1.31

Updates `jmh-generator-annprocess` from 1.30 to 1.31

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

Author: dependabot[bot]

exist-core-jmh/pom.xml

@@ -39,7 +39,7 @@
     <description>JMH Benchmarks for exist-core</description>
 
     <properties>
-        <jmh.version>1.30</jmh.version>
+        <jmh.version>1.31</jmh.version>
         <uberjar.name>benchmarks</uberjar.name>
     </properties>