Update dependency io.micronaut.sourcegen:micronaut-sourcegen-bom to v2.0.0-SNAPSHOT

Author: renovate[bot]

gradle/libs.versions.toml

@@ -63,7 +63,7 @@ tomlj="1.1.1"
 vertx = "4.5.23"
 wiremock = "2.33.2"
 mimepull = "1.10.0"
-micronaut-sourcegen = "2.0.0-M1"
+micronaut-sourcegen = "2.0.0-SNAPSHOT"
 icu4j = "76.1"
 jfrunit = "1.0.0.Alpha2"
 junit4 = "4.13.2"