Bump jazzy from 0.14.4 to 0.15.3 (#1170)

Bumps [jazzy](https://github.com/realm/jazzy) from 0.14.4 to 0.15.3.
- [Release notes](https://github.com/realm/jazzy/releases)
- [Changelog](https://github.com/realm/jazzy/blob/master/CHANGELOG.md)
- [Commits](realm/jazzy@v0.14.4...v0.15.3)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile

@@ -2,4 +2,4 @@
 source "https://rubygems.org"
 
 gem 'cocoapods', '~> 1.16'
-gem 'jazzy', '~> 0.14'
+gem 'jazzy', '~> 0.15'

Gemfile.lock

@@ -24,7 +24,7 @@ GEM
       json (>= 1.5.1)
     atomos (0.1.3)
     base64 (0.2.0)
-    benchmark (0.3.0)
+    benchmark (0.4.0)
     bigdecimal (3.1.8)
     claide (1.1.0)
     cocoapods (1.16.2)
@@ -78,20 +78,20 @@ GEM
     httpclient (2.8.3)
     i18n (1.14.6)
       concurrent-ruby (~> 1.0)
-    jazzy (0.14.4)
+    jazzy (0.15.3)
       cocoapods (~> 1.5)
       mustache (~> 1.1)
       open4 (~> 1.3)
       redcarpet (~> 3.4)
-      rexml (~> 3.2)
+      rexml (>= 3.2.7, < 4.0)
       rouge (>= 2.0.6, < 5.0)
       sassc (~> 2.1)
       sqlite3 (~> 1.3)
       xcinvoke (~> 0.3.0)
-    json (2.7.5)
+    json (2.8.1)
     liferaft (0.0.6)
     logger (1.6.1)
-    mini_portile2 (2.8.5)
+    mini_portile2 (2.8.7)
     minitest (5.25.1)
     molinillo (0.8.0)
     mustache (1.1.1)
@@ -103,12 +103,12 @@ GEM
     public_suffix (4.0.7)
     redcarpet (3.6.0)
     rexml (3.3.9)
-    rouge (4.2.0)
+    rouge (4.4.0)
     ruby-macho (2.5.1)
     sassc (2.4.0)
       ffi (~> 1.9)
     securerandom (0.3.1)
-    sqlite3 (1.6.9)
+    sqlite3 (1.7.3)
       mini_portile2 (~> 2.8.0)
     typhoeus (1.4.1)
       ethon (>= 0.9.0)
@@ -129,7 +129,7 @@ PLATFORMS
 
 DEPENDENCIES
   cocoapods (~> 1.16)
-  jazzy (~> 0.14)
+  jazzy (~> 0.15)
 
 BUNDLED WITH
    2.1.4