build(deps): bump rbs from 3.6.1 to 3.8.1

Bumps [rbs](https://github.com/ruby/rbs) from 3.6.1 to 3.8.1.
- [Release notes](https://github.com/ruby/rbs/releases)
- [Changelog](https://github.com/ruby/rbs/blob/master/CHANGELOG.md)
- [Commits](ruby/rbs@v3.6.1...v3.8.1)

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

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

Gemfile.lock

@@ -28,7 +28,7 @@ GEM
     listen (3.9.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
-    logger (1.6.4)
+    logger (1.6.5)
     minitest (5.25.1)
     parallel (1.26.3)
     parser (3.3.6.0)
@@ -40,7 +40,7 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.11.1)
       ffi (~> 1.0)
-    rbs (3.6.1)
+    rbs (3.8.1)
       logger
     regexp_parser (2.10.0)
     rubocop (1.69.2)
@@ -61,7 +61,7 @@ GEM
       zlib
     ruby-progressbar (1.13.0)
     securerandom (0.3.1)
-    steep (1.8.3)
+    steep (1.9.3)
       activesupport (>= 5.1)
       concurrent-ruby (>= 1.1.10)
       csv (>= 3.0.9)
@@ -72,10 +72,11 @@ GEM
       logger (>= 1.3.0)
       parser (>= 3.1)
       rainbow (>= 2.2.2, < 4.0)
-      rbs (~> 3.6.0)
+      rbs (~> 3.8)
       securerandom (>= 0.1)
       strscan (>= 1.0.0)
       terminal-table (>= 2, < 4)
+      uri (>= 0.12.0)
     strscan (3.1.0)
     terminal-table (3.0.2)
       unicode-display_width (>= 1.1.1, < 3)
@@ -84,6 +85,7 @@ GEM
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
     unicode-display_width (2.6.0)
+    uri (1.0.2)
     zlib (3.2.1)
 
 PLATFORMS