Amazon SES: Update minimum boto3 version

Fixes #428.

Author: medmunds

CHANGELOG.rst

@@ -25,6 +25,18 @@ Release history
 ^^^^^^^^^^^^^^^
     ..  This extra heading level keeps the ToC from becoming unmanageably long
 
+vNext
+-----
+
+*Unreleased changes*
+
+Fixes
+~~~~~
+
+* **Amazon SES:** Require boto3 1.24.6 or later to ensure support for the SESv2 
+  close method. (Thanks to `@mgibeau`_ for identifying the issue.)
+
+
 v13.0
 -----
 
@@ -1802,6 +1814,7 @@ Features
 .. _@mark-mishyn: https://github.com/mark-mishyn
 .. _@martinezleoml: https://github.com/martinezleoml
 .. _@mbk-ok: https://github.com/mbk-ok
+.. _@mgibeau: https://github.com/mgibeau
 .. _@MikeVL: https://github.com/MikeVL
 .. _@mounirmesselmeni: https://github.com/mounirmesselmeni
 .. _@mwheels: https://github.com/mwheels

pyproject.toml

@@ -71,7 +71,7 @@ dependencies = [
 # ESP-specific additional dependencies.
 # (For simplicity, requests is included in the base dependencies.)
 # (Do not use underscores in extra names: they get normalized to hyphens.)
-amazon-ses = ["boto3>=1.10.17"]
+amazon-ses = ["boto3>=1.24.6"]
 brevo = []
 mailersend = []
 mailgun = []