Bump org.openapitools:jackson-databind-nullable from 0.2.6 to 0.2.8 in the api-build-tools group (#1561)

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -31,7 +31,7 @@ wiremock = '3.9.1'
 testcontainers = '1.20.6'
 swagger-integration-jakarta = '2.2.28'
 jakarta-annotation-api = '2.1.1'
-jackson-databind-nullable = '0.2.6'
+jackson-databind-nullable = '0.2.8'
 antlr = '4.13.2'
 json-schema-validator = '2.2.14'
 checkstyle = '10.24.0'