feat(crawler): add codeforces::gym

[Liu233w]

Merged in to codeforces

related to #991

[codecov]

Codecov Report

Merging #1152 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1152   +/-   ##
=======================================
  Coverage   83.83%   83.83%           
=======================================
  Files          84       84           
  Lines        1608     1608           
  Branches       54       54           
=======================================
  Hits         1348     1348           
  Misses        256      256           
  Partials        4        4           

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[cypress]

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Test summary

34 • 0 • 1 • 0

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Run details

Project	acm-statistics
Status	Passed
Commit	2e8a435
Started	Jun 25, 2020 10:48 PM
Ended	Jun 25, 2020 10:54 PM
Duration	05:37 💡
OS	Linux Debian - 9.11
Browser	Electron 80

View run in Cypress Dashboard ➡️

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[Liu233w]

/update-e2e-snapshot

/update-html-snapshot

[github-actions]

Update E2E Snapshot Triggered!
Address: https://github.com/Liu233w/acm-statistics/actions/runs/146996448

[github-actions]

Update HTML Snapshot Triggered!
Address: https://github.com/Liu233w/acm-statistics/actions/runs/146996450