[Java] Upgrade to Agrona 1.15.0.

Author: mjpt777

build.gradle

@@ -47,7 +47,7 @@ def hamcrestVersion = '2.2'
 def mockitoVersion = '4.4.0'
 def junitVersion = '5.8.2'
 def jmhVersion = '1.34'
-def agronaVersion = '1.14.0'
+def agronaVersion = '1.15.0'
 def agronaVersionRange = '[1.14,1.15[' // allow any patch release of 1.14.x
 
 def sbeGroup = 'uk.co.real-logic'