🔧 Set rust-toolchain

[H1rono]

close #78

[H1rono]

rust-toolchainを1.67以上にしたら動きそうなので、もうちょい後でやる

error: package `time-core v0.1.2` cannot be built because it requires rustc 1.67.0 or newer, while the currently active rustc version is 1.64.0
Error: Process completed with exit code 101.

https://github.com/H1rono/traq-bot-http-rs/actions/runs/6299231276/job/17099591174

[H1rono]

tomlにした方がいい
https://rust-lang.github.io/rustup/overrides.html#the-toolchain-file

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (a4283a7) 94.56% compared to head (0db680e) 95.43%.
Report is 25 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #88      +/-   ##
==========================================
+ Coverage   94.56%   95.43%   +0.87%     
==========================================
  Files          13       13              
  Lines        1416     1293     -123     
==========================================
- Hits         1339     1234     -105     
+ Misses         77       59      -18     

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[H1rono]

• 1.67にする
• rust-toolchain.tomlをtaploでチェックする
• Cargo.tomlのMSRVを上げる

[H1rono]

できた!