build(deps): bump scraper in /atcoder-problems-backend

Bumps [scraper](https://github.com/programble/scraper) from 0.12.0 to 0.13.0.
- [Release notes](https://github.com/programble/scraper/releases)
- [Commits](rust-scraper/scraper@v0.12.0...v0.13.0)

---
updated-dependencies:
- dependency-name: scraper
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

atcoder-problems-backend/Cargo.lock

@@ -7,7 +7,7 @@ publish = false
 
 [dependencies]
 reqwest = { version = "0.11", features = ["json", "gzip"] }
-scraper = { version = "0.12", default-features = false }
+scraper = { version = "0.13", default-features = false }
 chrono = "0.4"
 regex = "1"
 serde = { version = "1.0", features = ["derive"] }