Upgrade api version

[jbardo]

Hello,

It seems the salesforce api version used in this plugin is quite old: 39.0 (Spring '17).
It is limiting for working with newer SOQL features like the TYPEOF keyword, very useful for querying polymorphic relationships.

"SOQL TYPEOF expressions are not supported for API versions less than 46.0 ."

Is it possible to either upgrade to at least 46.0 (Summer '19), or something else like latest available in the salesforce instance, or allow to choose it? What would you recommend? The system I am currently working with is in version 54 (Spring '22) but I suppose some could be in older versions too.

Thanks

[aziz-harazi]

Hello I've just push a PR #9 in order to update api version.

Thank you