chore: bump deps; implement chombo ranking limit

[m4tx]

The limit is to avoid Discord complaining about embed being too large (Invalid Form Body (data.embeds.0.fields: Must be 25 or fewer in length.)).

[codecov]

Codecov Report

Attention: 51 lines in your changes are missing coverage. Please review.

Comparison is base (1f8c1f5) 45.38% compared to head (bf98fdc) 44.85%.

Files	Patch %	Lines
chombot-kcc/src/slash_commands/chombo.rs	0.00%	14 Missing ⚠️
chombot-kcc/src/main.rs	0.00%	11 Missing ⚠️
chombot/src/main.rs	0.00%	8 Missing ⚠️
chombot/src/tournament_watcher.rs	0.00%	8 Missing ⚠️
chombot-common/src/discord_utils.rs	0.00%	4 Missing ⚠️
chombot-common/src/slash_commands/score.rs	0.00%	3 Missing ⚠️
chombot-common/src/slash_commands/hand.rs	0.00%	2 Missing ⚠️
chombot-kcc/src/slash_commands/pasta/command.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #218      +/-   ##
==========================================
- Coverage   45.38%   44.85%   -0.54%     
==========================================
  Files          22       22              
  Lines        1430     1447      +17     
==========================================
  Hits          649      649              
- Misses        781      798      +17     

Flag	Coverage Δ
rust	44.85% <17.74%> (-0.54%)	⬇️

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[Iipin]

Great read, lgtm&approve