fix(fypp): erroneous warning for fypp

[gnikit]

Previously the extension logged warnings regardless
of whether fypp was enabled or not due to
the linting compiler being different.

Fixes #1017

[codecov]

Codecov Report

❌ Patch coverage is 66.66667% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 81.65%. Comparing base (5b1acd0) to head (a739f08).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
src/lint/provider.ts	66.66%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1286   +/-   ##
=======================================
  Coverage   81.64%   81.65%           
=======================================
  Files          13       13           
  Lines        2435     2436    +1     
  Branches      202      202           
=======================================
+ Hits         1988     1989    +1     
  Misses        442      442           
  Partials        5        5           

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