Update NetP launch agent logic to include build number (#2015)

Task/Issue URL: https://app.asana.com/0/1199230911884351/1206277530960782/f

Description:
This PR updates the NetP launch logic to include the build number. Previously it only used the version number to detect if the app had been updated and thus needed to re-install the agent, but now we publish builds with the same version number multiple times and only bump the build number.

DuckDuckGo/NetworkProtection/AppTargets/BothAppTargets/NetworkProtectionAppEvents.swift

@@ -115,7 +115,7 @@ final class NetworkProtectionAppEvents {
     }
 
     private func restartNetworkProtectionIfVersionChanged(using loginItemsManager: LoginItemsManager) {
-        let currentVersion = AppVersion.shared.versionNumber
+        let currentVersion = AppVersion.shared.versionAndBuildNumber
         let versionStore = NetworkProtectionLastVersionRunStore()
         defer {
             versionStore.lastVersionRun = currentVersion