chore(main): release 8.0.0-beta.16 (#1228)

* chore(main): release 8.0.0-beta.16

* chore: normalize prerelease version to PEP 440

---------

Co-authored-by: aao-ipr-bot[bot] <279263549+aao-ipr-bot[bot]@users.noreply.github.com>

Author: aao-ipr-bot[bot]

.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  ".": "8.0.0-beta.15"
+  ".": "8.0.0-beta.16"
 }