fix(dev): Downgrade MySQL from 9.3 to 8.4 due to bug in Testcontainers

See testcontainers/testcontainers-java#10184 for more context.
Thanks @sivaprasadreddy for reporting this

Signed-off-by: Thomas Vitale <ThomasVitale@users.noreply.github.com>

Author: ThomasVitale

arconia-dev/arconia-dev-services/arconia-dev-services-mysql/src/main/java/io/arconia/dev/services/mysql/MySqlDevServicesProperties.java

@@ -23,7 +23,7 @@ public class MySqlDevServicesProperties implements DevServicesProperties {
     /**
      * Full name of the container image used in the dev service.
      */
-    private String imageName = "mysql:9.3";
+    private String imageName = "mysql:8.4";
 
     /**
      * Environment variables to set in the service.