fix comment about congestionWindow value

[birneee]

The comment about this field is wrong. I think it should be: "in bytes".

[marten-seemann]

lgtm, but you'll need to sign the CLA so we can merge this PR.

[codecov]

Codecov Report

Merging #3310 (e9de55b) into master (59958e5) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #3310   +/-   ##
=======================================
  Coverage   85.65%   85.65%           
=======================================
  Files         133      133           
  Lines        9786     9786           
=======================================
  Hits         8382     8382           
  Misses       1029     1029           
  Partials      375      375           

Impacted Files	Coverage Δ
internal/congestion/cubic_sender.go	80.33% <ø> (ø)

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[birneee]

I have signed it, please rescan

[marten-seemann]

Looks like that didn't work: https://github.com/lucas-clemente/quic-go/pull/3310/checks?check_run_id=4686346622

[birneee]

The CLA check failed 14h ago.
I mean it should work now :)

[lucas-clemente]

Forced a rescan. Sorry about that, not sure why it didn't happen automatically.

[marten-seemann]

Cool, thank you @lucas-clemente and @birneee!