fix(deps): update io.gravitee:gravitee-bom to v8.2.21

Author: renovate[bot]

pom.xml

@@ -38,7 +38,7 @@
 
         <gravitee-common.version>4.6.0</gravitee-common.version>
         <gravitee-notifier-api.version>1.4.3</gravitee-notifier-api.version>
-        <gravitee-bom.version>8.2.11</gravitee-bom.version>
+        <gravitee-bom.version>8.2.21</gravitee-bom.version>
         <prettier-maven-plugin.prettierJavaVersion>2.1.0</prettier-maven-plugin.prettierJavaVersion>
     </properties>