Release/2.0.0 beta16 (#561)

* Uprev pypi project release tag to 2.0.0-beta16

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **New Features**
- Updated to version 2.0.0-beta16, indicating enhancements and potential
new features in this beta release.
 
- **Bug Fixes**
- Improvements likely included over the previous beta version, enhancing
overall stability and performance.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

python/pyproject.toml

@@ -10,7 +10,7 @@ classifiers = [
     "Programming Language :: Python :: Implementation :: CPython",
     "Programming Language :: Python :: Implementation :: PyPy",
 ]
-version = "2.0.0-beta15"
+version = "2.0.0-beta16"
 dependencies = [
     "openpyxl==3.1.2",
     "boto3==1.28.9",