Merge pull request #8773 from machi1990/fix/min-required-maven-version

docs: update the minimum required maven version to 3.6.2

Author: geoand

docs/src/main/asciidoc/building-my-first-extension.adoc

@@ -28,7 +28,7 @@ To complete this guide, you need:
 * less than 30 minutes
 * an IDE
 * JDK 1.8+ installed with `JAVA_HOME` configured appropriately
-* Apache Maven 3.5.3+
+* Apache Maven 3.6.2+
 
 == Solution