Bump logger from 1.6.6 to 1.7.0 in /steep

Bumps [logger](https://github.com/ruby/logger) from 1.6.6 to 1.7.0.
- [Release notes](https://github.com/ruby/logger/releases)
- [Commits](ruby/logger@v1.6.6...v1.7.0)

---
updated-dependencies:
- dependency-name: logger
  dependency-type: indirect
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

steep/Gemfile.lock

@@ -31,7 +31,7 @@ GEM
     listen (3.9.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
-    logger (1.6.6)
+    logger (1.7.0)
     minitest (5.25.5)
     mutex_m (0.3.0)
     parser (3.3.7.2)