Merge pull request kenkoooo#1135 from kenkoooo/pr/sin471/1131

fix isRatedContest()

Merge pull request kenkoooo#1124 from kenkoooo/dependabot/npm_and_yar…

…n/atcoder-problems-frontend/url-parse-1.5.7

build(deps): bump url-parse from 1.5.3 to 1.5.7 in /atcoder-problems-frontend

Merge pull request kenkoooo#770 from magurotuna/language-count-client…

…-sqlx

[replacement with sqlx] LanguageCountClient