[chore] Prep release (#517)

Author: nwithan8

CHANGELOG.md

@@ -1,5 +1,10 @@
 # CHANGELOG
 
+## v5.7.0 (2023-09-05)
+
+- Fix FedEx SmartPost carrier account creation not going to the correct endpoint
+- Add missing optional `ReturnAddress` and `BuyerAddress` parameters to Shipment creation parameter set
+
 ## v5.6.0 (2023-08-31)
 
 - Add ability to compare an EasyPost object to a parameter set object via `Matches` function

EasyPost.nuspec

@@ -3,7 +3,7 @@
     <metadata>
         <id>EasyPost-Official</id>
         <title>EasyPost (Official)</title>
-        <version>5.6.0</version>
+        <version>5.7.0</version>
         <authors>EasyPost</authors>
         <owners>EasyPost</owners>
         <projectUrl>https://www.easypost.com</projectUrl>

EasyPost/Properties/VersionInfo.cs

@@ -2,6 +2,6 @@
 
 // Version information for an assembly must follow semantic versioning
 // When releasing a release candidate, append a 4th digit being the number of the release candidate
-[assembly: AssemblyVersion("5.6.0")]
-[assembly: AssemblyFileVersion("5.6.0")]
-[assembly: AssemblyInformationalVersion("5.6.0")]
+[assembly: AssemblyVersion("5.7.0")]
+[assembly: AssemblyFileVersion("5.7.0")]
+[assembly: AssemblyInformationalVersion("5.7.0")]