Release v208 (#1298)

To pick up #1296.

GUS-W-10881777.

CHANGELOG.md

@@ -2,6 +2,9 @@
 
 ## Unreleased
 
+
+## v208 (2022-03-23)
+
 - Use Python 3.10 as the default Python version for new apps (previously Python 3.9) ([#1296](https://github.com/heroku/heroku-buildpack-python/pull/1296)).
 
 ## v207 (2022-03-16)