Release: Bumps version to 3.59.0

- Updates ClientOfficialVersion to 3.59.0
- Updates ClientPreviewVersion to 3.60.0
- Updates ClientPreviewSuffixVersion to preview.0
- Adds changelog entries for 3.59.0 and 3.60.0-preview.0
- Adds API contract files for 3.59.0 and 3.60.0-preview.0

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: NaluTripician

Directory.Build.props

@@ -1,7 +1,7 @@
 <Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 	<PropertyGroup>
-		<ClientOfficialVersion>3.58.0</ClientOfficialVersion>
-		<ClientPreviewVersion>3.59.0</ClientPreviewVersion>
+		<ClientOfficialVersion>3.59.0</ClientOfficialVersion>
+		<ClientPreviewVersion>3.60.0</ClientPreviewVersion>
 		<ClientPreviewSuffixVersion>preview.0</ClientPreviewSuffixVersion>
 		<DirectVersion>3.42.4</DirectVersion>
 		<FaultInjectionVersion>1.0.0</FaultInjectionVersion>