chore(deps): replace devdependency rollup-plugin-babel with @rollup/plugin-babel ^5.0.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
rollup-plugin-babel	devDependencies	replacement	^4.4.0 -> ^5.0.0

This is a special PR that replaces rollup-plugin-babel with the community suggested minimal stable replacement version.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.68%. Comparing base (96d8ce4) to head (4f26a98).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #810   +/-   ##
=======================================
  Coverage   98.68%   98.68%           
=======================================
  Files          33       33           
  Lines         687      687           
  Branches      212      212           
=======================================
  Hits          678      678           
  Misses          5        5           
  Partials        4        4           

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