fix(deps): update dependency io.micronaut:micronaut-core-bom to v4.7.12

Author: renovate[bot]

gradle/libs.versions.toml

@@ -16,7 +16,7 @@
 # a managed version (a version which alias starts with "managed-"
 
 [versions]
-micronaut = "4.7.11"
+micronaut = "4.7.12"
 micronaut-docs = "2.0.0"
 micronaut-logging = "1.5.1"
 micronaut-serde = "2.13.0"