chore(release): 8.4.0 [skip ci]

# [8.4.0](v8.3.0...v8.4.0) (2024-04-09)

### Features

* Update Branch to 3.4.1 up to next major ([#59](#59)) ([8f031b0](8f031b0))

Author: mparticle-automation

mParticle-BranchMetrics.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
     s.name             = "mParticle-BranchMetrics"
-    s.version          = "8.3.0"
+    s.version          = "8.4.0"
     s.summary          = "BranchMetrics integration for mParticle"
 
     s.description      = <<-DESC