Update benchmark-ips requirement from 2.12.0 to 2.13.0 in /benchmarks

Updates the requirements on [benchmark-ips](https://github.com/evanphx/benchmark-ips) to permit the latest version.
- [Release notes](https://github.com/evanphx/benchmark-ips/releases)
- [Changelog](https://github.com/evanphx/benchmark-ips/blob/master/History.md)
- [Commits](evanphx/benchmark-ips@v2.12.0...v2.13.0)

---
updated-dependencies:
- dependency-name: benchmark-ips
  dependency-type: direct:production
...

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

benchmarks/Gemfile

@@ -6,7 +6,7 @@ git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
 ruby ">= 2.7.7"
 
-gem "benchmark-ips", "2.12.0"
+gem "benchmark-ips", "2.13.0"
 
 if RUBY_VERSION > "3"
   gem "dry-core", "1.0.1"