fix: Use LINGUI_CONFIG env as fallback for extract

[danielkcz]

Tiny fix where macro package is using the LINGUI_CONFIG env while extract command isn't. In the case of different config locations, this is causing problems. I know there is --config for extract, but that means having a path specified in two different ways.

Only thing I am not sure of if the env variable should take precedence over CLI arg. I chose not, but let me know.

[vercel]

This pull request is being automatically deployed with Vercel (learn more).
To see the status of your deployment, click below or on the icon next to each commit.

🔍 Inspect: https://vercel.com/lingui-js/js-lingui/ibx48jh36
✅ Preview: https://js-lingui-git-fork-fredyc-extract-config-from-env.lingui-js.vercel.app

[codecov]

Codecov Report

Merging #932 (3f4e697) into main (4ad90d4) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #932   +/-   ##
=======================================
  Coverage   83.25%   83.25%           
=======================================
  Files          52       52           
  Lines        1571     1571           
  Branches      426      426           
=======================================
  Hits         1308     1308           
  Misses        156      156           
  Partials      107      107           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 4ad90d4...3f4e697. Read the comment docs.

[semoal]

AWS says this precedence:

If you specify an option by using a parameter on the CLI command line, it overrides any value from either the corresponding environment variable or a profile in the configuration file.

We should go with that =)

[semoal]

Released in 3.4.0 🥳