Add support change metric name in plugins/processors/regex

[ihard]

Please add the ability to change the name of the metric using the plugins/processors/regex.
Perhaps this is implemented in some other way (plugin), but could not be found.
Case - mass renaming of incoming metrics using regular expressions.

[srebhan]

Related to #5159.

[srebhan]

@ihard can you please check if #9561 is what you had in mind? You can use the artifacts built by CI (click the small black triangle). If you encounter any problem, please let me know.

[ihard]

@srebhan Yes, that's what you need!