fix: embedded-minio/pom.xml to reduce vulnerabilities (#1499)

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JAVA-ORGAPACHECOMMONS-5901530

Co-authored-by: snyk-bot <snyk-bot@snyk.io>

embedded-minio/pom.xml

@@ -13,7 +13,7 @@
     <artifactId>embedded-minio</artifactId>
 
     <properties>
-        <minio.version>8.5.5</minio.version>
+        <minio.version>8.5.6</minio.version>
         <!-- Manage an OkHttp version supported by MinIO -->
         <okhttp.version>4.11.0</okhttp.version>
     </properties>