build(deps): bump sorbet-runtime from 0.5.9115 to 0.5.9120

Bumps [sorbet-runtime](https://github.com/sorbet/sorbet) from 0.5.9115 to 0.5.9120.
- [Release notes](https://github.com/sorbet/sorbet/releases)
- [Commits](https://github.com/sorbet/sorbet/commits)

---
updated-dependencies:
- dependency-name: sorbet-runtime
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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

Gemfile.lock

@@ -257,7 +257,7 @@ GEM
       faraday (> 0.8, < 2.0)
     simpleidn (0.2.1)
       unf (~> 0.1.4)
-    sorbet-runtime (0.5.9115)
+    sorbet-runtime (0.5.9120)
     terminal-table (1.8.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
     thread_safe (0.3.6)