Missing command to set and/or update the variables of a given flow element (e.g. process instance, task, etc.)

[cx-eyal-goren]

we are missing the feature to set variables (java/go clients have it)

/**

• **Command to set and/or update the variables of a given flow element (e.g. process instance,
• task, etc.)**
• zeebeClient
• .newSetVariablesCommand(elementInstanceKey)
• .variables(json)
• .send();
• @param elementInstanceKey the key of the element instance to set/update the variables for
• @return a builder for the command
  */
  SetVariablesCommandStep1 newSetVariablesCommand(long elementInstanceKey);

will be great if u can add it