[dotnet] Changelog updated for RC 2

dotnet/CHANGELOG

@@ -1,3 +1,28 @@
+v4.0.0rc2
+=========
+
+  * Fix TouchActions Flick overload
+  * Fixing doc string for Network Conditions methods
+  * Adding support for Firefox and Chromium Android options
+  * Coercing return type of GetCastSinks() to proper datatype
+  * implement ability to open Safari inspector
+  * implement getting and setting permissions on Safari
+  * implement getting the context of Firefox commands
+  * implement ability for Chrome and Edge to set applicable permissions on browser
+  * implement ability to launch chromium application
+  * implement chrome and edge support for casting to devices
+  * Add --websocket-port command line argument for geckodriver
+  * Restore ability to add headers to WebDriver HTTP commands
+  * Move UserAgent class to main namespace
+  * mark deprecated chromedriver commands as obsolete and implement new preferred command
+  * Add version-independent method for overriding user agent via CDP
+  * Add Bidi-compliant webSocketUrl capability
+  * Make CDP sessions autodetect close of initial attached target
+  * Update supported version of CDP to 94, remove 92
+  * Rename TerminateDevToolsSession to ResetDevToolsSession
+  * Add ability to disconnect a CDP session
+  * Add transformation for network responses via CDP
+
 v4.0.0rc1
 =========
  * Set available versions of Chrome DevTools Protocol to 85, 92, and 93.
@@ -2204,3 +2229,4 @@ v2.2.0
     through the IDE or through the command line will now produce signed
   assemblies.
   * Updating .NET bindings JSON.NET from 3.5 to 4.0.
+