Use Maven 3.9.12 for build on GitHub

Author: slawekjaranowski

.github/workflows/maven-verify.yml

@@ -54,7 +54,7 @@ jobs:
           cache: 'maven'
 
       - name: Set up Maven
-        run: mvn --errors --batch-mode --show-version org.apache.maven.plugins:maven-wrapper-plugin:3.3.4:wrapper "-Dmaven=3.9.11"
+        run: mvn --errors --batch-mode --show-version org.apache.maven.plugins:maven-wrapper-plugin:3.3.4:wrapper "-Dmaven=3.9.12"
         shell: bash
 
       - name: Running integration tests