Bump ruby to 2.7.5 (facebook#33485)

Summary:
This bumps ruby to the latest 2.7.x versions which includes bug fixes and 3 CVEs (https://www.ruby-lang.org/en/news/2021/11/24/ruby-2-7-5-released/)

[iOS] [Changed] - Bump ruby to 2.7.5

Pull Request resolved: facebook#33485

Test Plan: no test plan, should just pass tests.

Reviewed By: cortinico

Differential Revision: D35116757

Pulled By: GijsWeterings

fbshipit-source-id: a8e96bfcc6086b70dac21aee24bae46fe6b072bb

.circleci/config.yml

@@ -79,7 +79,7 @@ executors:
   reactnativeios:
     <<: *defaults
     macos:
-      xcode: &_XCODE_VERSION "13.0.0"
+      xcode: &_XCODE_VERSION "13.3.0"
     resource_class: macos.x86.medium.gen2
 
 # -------------------------

Gemfile.lock

@@ -85,7 +85,7 @@ GEM
       colored2 (~> 3.1)
       nanaimo (~> 0.3.0)
       rexml (~> 3.2.4)
-    zeitwerk (2.5.1)
+    zeitwerk (2.5.4)
 
 PLATFORMS
   ruby