fix(deps): update dependency io.micronaut.validation:micronaut-validation-bom to v4.0.3 (#661)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Diff for: gradle/libs.versions.toml

@@ -15,7 +15,7 @@ managed-jcache = "1.1.1"
 
 micronaut-micrometer = "5.0.1"
 micronaut-serde = "2.0.1"
-micronaut-validation = "4.0.1"
+micronaut-validation = "4.0.3"
 testcontainers = "1.18.3"
 graal-svm = "23.0.1"