[dotnet] Update version for 4.0 RC3

Author: jimevans

dotnet/selenium-dotnet-version.bzl

@@ -1,6 +1,6 @@
 # BUILD FILE SYNTAX: STARLARK
 
-SE_VERSION = "4.0.0"
+SE_VERSION = "4.0.0-rc3"
 ASSEMBLY_VERSION = "4.0.0.0"
 SUPPORTED_NET_FRAMEWORKS = ["net45", "net46", "net47", "net48"]
 SUPPORTED_NET_STANDARD_VERSIONS = ["netstandard2.0", "netstandard2.1", "net5.0"]