chore: update version to 8.4.2 [skip ci]

Author: mobilealgolia

AlgoliaSearchClient.podspec

@@ -1,7 +1,7 @@
 Pod::Spec.new do |spec|
   spec.name         = "AlgoliaSearchClient"
   spec.module_name  = 'AlgoliaSearchClient'
-  spec.version      = "8.4.1"
+  spec.version      = "8.4.2"
   spec.summary      = "Algolia Search API Client written in Swift."
   spec.homepage     = "https://github.com/algolia/algoliasearch-client-swift"
   spec.license      = { :type => "MIT", :file => "LICENSE" }

CHANGELOG.md

@@ -1,5 +1,13 @@
 # ChangeLog
 
+## [8.4.2](https://github.com/algolia/algoliasearch-client-swift/compare/8.4.1...8.4.2) (2020-12-21)
+
+### Fix
+
+- Missing content-type header for async InsightsClient.sendEvents call (#710) ([e2c92f0](https://github.com/algolia/algoliasearch-client-swift/commit/e2c92f0))
+
+
+
 ## [8.4.1](https://github.com/algolia/algoliasearch-client-swift/compare/8.4.0...8.4.1) (2020-12-18)
 
 ### Fix

Sources/AlgoliaSearchClient/Helpers/Version+Current.swift

@@ -1,2 +1,2 @@
 // This is generated file. Don't modify it manually.
-public extension Version { static let current: Version = .init(major: 8, minor: 4, patch: 1, prereleaseIdentifier: nil) }
+public extension Version { static let current: Version = .init(major: 8, minor: 4, patch: 2, prereleaseIdentifier: nil) }