Bump addressable from 2.7.0 to 2.8.1 in /ios

Bumps [addressable](https://github.com/sporkmonger/addressable) from 2.7.0 to 2.8.1.
- [Release notes](https://github.com/sporkmonger/addressable/releases)
- [Changelog](https://github.com/sporkmonger/addressable/blob/main/CHANGELOG.md)
- [Commits](sporkmonger/addressable@addressable-2.7.0...addressable-2.8.1)

---
updated-dependencies:
- dependency-name: addressable
  dependency-type: indirect
...

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

ios/Gemfile.lock

@@ -2,8 +2,8 @@ GEM
   remote: https://rubygems.org/
   specs:
     CFPropertyList (3.0.2)
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     atomos (0.1.3)
     aws-eventstream (1.1.0)
     aws-partitions (1.363.0)
@@ -125,7 +125,7 @@ GEM
     naturally (2.2.0)
     os (1.1.1)
     plist (3.5.0)
-    public_suffix (4.0.5)
+    public_suffix (5.0.0)
     rake (13.0.1)
     representable (3.0.4)
       declarative (< 0.1.0)