Bump release tag default to v3.0.0-SNAPSHOT (#1921)

Author: gavinbunney

Diff for: gradle.properties

@@ -3,7 +3,7 @@ versions_netty=4.1.118.Final
 versions_netty_io_uring=0.0.25.Final
 versions_brotli4j=1.16.0
 release.scope=patch
-release.version=2.6.7-SNAPSHOT
+release.version=3.0.0-SNAPSHOT
 org.gradle.jvmargs=-Xms1g -Xmx2g
 
 com.netflix.testcontainers-cloud.enabled=false