Bump steep from 1.8.1 to 1.8.3 in /steep

Bumps [steep](https://github.com/soutaro/steep) from 1.8.1 to 1.8.3.
- [Release notes](https://github.com/soutaro/steep/releases)
- [Changelog](https://github.com/soutaro/steep/blob/master/CHANGELOG.md)
- [Commits](soutaro/steep@v1.8.1...v1.8.3)

---
updated-dependencies:
- dependency-name: steep
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

steep/Gemfile

@@ -1,4 +1,4 @@
 source "https://rubygems.org"
 
 gem "rbs", "~> 3.6.1"
-gem "steep", "~> 1.8.1"
+gem "steep", "~> 1.8.3"

steep/Gemfile.lock

@@ -1,8 +1,9 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (7.2.1.1)
+    activesupport (8.0.0)
       base64
+      benchmark (>= 0.3)
       bigdecimal
       concurrent-ruby (~> 1.0, >= 1.3.1)
       connection_pool (>= 2.2.5)
@@ -12,15 +13,17 @@ GEM
       minitest (>= 5.1)
       securerandom (>= 0.3)
       tzinfo (~> 2.0, >= 2.0.5)
+      uri (>= 0.13.1)
     ast (2.4.2)
     base64 (0.2.0)
+    benchmark (0.4.0)
     bigdecimal (3.1.8)
     concurrent-ruby (1.3.4)
     connection_pool (2.4.1)
     csv (3.3.0)
     drb (2.2.1)
     ffi (1.17.0)
-    fileutils (1.7.2)
+    fileutils (1.7.3)
     i18n (1.14.6)
       concurrent-ruby (~> 1.0)
     json (2.8.2)
@@ -30,7 +33,7 @@ GEM
       rb-inotify (~> 0.9, >= 0.9.10)
     logger (1.6.1)
     minitest (5.25.1)
-    parser (3.3.5.0)
+    parser (3.3.6.0)
       ast (~> 2.4.1)
       racc
     racc (1.8.1)
@@ -40,8 +43,8 @@ GEM
       ffi (~> 1.0)
     rbs (3.6.1)
       logger
-    securerandom (0.3.1)
-    steep (1.8.1)
+    securerandom (0.3.2)
+    steep (1.8.3)
       activesupport (>= 5.1)
       concurrent-ruby (>= 1.1.10)
       csv (>= 3.0.9)
@@ -62,13 +65,14 @@ GEM
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
     unicode-display_width (2.6.0)
+    uri (1.0.2)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
   rbs (~> 3.6.1)
-  steep (~> 1.8.1)
+  steep (~> 1.8.3)
 
 BUNDLED WITH
    2.5.16