build(deps-dev): bump rbi from 0.1.7 to 0.1.8 in /Library/Homebrew

Bumps [rbi](https://github.com/Shopify/rbi) from 0.1.7 to 0.1.8.
- [Release notes](https://github.com/Shopify/rbi/releases)
- [Commits](https://github.com/Shopify/rbi/compare/v0.1.7...v0.1.8)

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

Signed-off-by: dependabot[bot] <support@github.com>

Library/Homebrew/Gemfile.lock

@@ -45,15 +45,15 @@ GEM
       elftools (>= 1.2)
     plist (3.7.1)
     prettier_print (1.2.1)
-    prism (0.20.0)
+    prism (0.21.0)
     pry (0.14.2)
       coderay (~> 1.1)
       method_source (~> 1.0)
     public_suffix (5.0.4)
     racc (1.7.3)
     rainbow (3.1.1)
-    rbi (0.1.7)
-      prism (>= 0.18.0, < 0.21)
+    rbi (0.1.8)
+      prism (>= 0.18.0, < 0.22)
       sorbet-runtime (>= 0.5.9204)
     rdiscount (2.2.7.3)
     regexp_parser (2.9.0)
@@ -165,8 +165,6 @@ GEM
       yard (>= 0.9)
 
 PLATFORMS
-  aarch64-linux
-  arm-linux
   arm64-darwin
   x86_64-darwin
   x86_64-linux