Limit sonatype repo to chronicle artifacts

gradle/any/dependencies.gradle

@@ -35,9 +35,12 @@ repositories {
     }
   }
 
-  // chronicle-bom needs access to chronicle snapshots
   maven {
     url 'https://oss.sonatype.org/content/repositories/snapshots/'
+    content {
+      // this repository *only* used for chronicle-map snapshot artifacts that are sometimes specified in the chronicle-bom
+      includeGroup 'net.openhft'
+    }
   }
 }