fix(typescript-estree): check TTY before version mismatch warning

[FabioAntunes]

Currently the Warning regarding the versions mismatch breaks other tools, like ALE for vim.
Since some tools depend on the output to the stdout to be a well formatted json.

This fixes the issue by allowing tools to use the parser without getting the warning, but still displaying the warning if the user triggers the command from the terminal.

Fixes #1060

[typescript-eslint]

Thanks for the PR, @FabioAntunes!

typescript-eslint is a 100% community driven project, and we are incredibly grateful that you are contributing to that community.

The core maintainers work on this in their personal time, so please understand that it may not be possible for them to review your work immediately.

Thanks again!

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[bradzacher]

Could you please also add this to typescript-estree?

https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/typescript-estree/src/parser.ts#L227

[codecov]

Codecov Report

Merging #1121 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #1121      +/-   ##
==========================================
+ Coverage   94.07%   94.07%   +<.01%     
==========================================
  Files         120      120              
  Lines        5212     5213       +1     
  Branches     1442     1443       +1     
==========================================
+ Hits         4903     4904       +1     
  Misses        177      177              
  Partials      132      132

Impacted Files	Coverage Δ
packages/typescript-estree/src/parser.ts	95.61% <100%> (+0.03%)	⬆️

[FabioAntunes]

Hey @bradzacher, that's what I did on this PR

[bradzacher]

Oh my. Sorry, I completely misread the file path.
I thought for a second the logic was in both parser and typescript-estree.

[bradzacher]

LGTM - thanks for this