[dotnet] Bumping to 4.12.3 and CHANGELOG update

Author: diemol

dotnet/CHANGELOG

@@ -1,3 +1,13 @@
+v4.12.3
+======
+* Fix saving png screenshot as file (#12654)
+* Correcting failures in CDP Network event tests
+* Close dev tools session safely (#12660)
+* Send data over cdp consecutively (#12666)
+* Show output from selenium manager error stream (#12677)
+* Return Task instead of wait it in generated CDP method invocations (#12672)
+* Invoke console log api called event many times depending on count of args (#12669)
+
 v4.12.2
 ======
 * No code changes; issue with 4.12.1 release

dotnet/selenium-dotnet-version.bzl

@@ -1,6 +1,6 @@
 # BUILD FILE SYNTAX: STARLARK
 
-SE_VERSION = "4.12.2"
+SE_VERSION = "4.12.3"
 ASSEMBLY_VERSION = "4.0.0.0"
 SUPPORTED_NET_STANDARD_VERSIONS = ["netstandard2.0"]