fix: pass browserslistEnv to resolveTargets

[meskill]

Q	A
Patch: Bug Fix?	Yes
Tests Added + Pass?	Yes
Any Dependency Changes?	No
License	MIT

In case of explicitly specifying browserslist query with extends keyword, browserslistEnv option was not passed to browserslist itself leading to wrong resolved targets

[babel-bot]

Build successful! You can test your changes in the REPL here: https://babeljs.io/repl/build/48313/

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[fedeci]

Thanks!

[nicolo-ribaudo]

Thank you!

I usually ask to not commit changes to .gitignore since you can use .git/info/exclude instead. However, since this also needs change in the Jest config and since that extension looks useful (I might use it!), it's ok this time.