Bigfunctions

Test github action create release


**Full Changelog**: https://github.com/unytics/bigfunctions/compare/v0.30...v0.31

Test github action create release

**Full Changelog**: https://github.com/unytics/bigfunctions/compare/v0.29...v0.30

Test github action create release
**Full Changelog**: https://github.com/unytics/bigfunctions/compare/v0.28...v0.29

What's Changed
* Remove unnecessary parentheses around sqlfunction and update sql_funct template by julienawonga in https://github.com/unytics/bigfunctions/pull/192
* 2.1- Docs enrichment with Excepted format of sql and python yml file functions by julienawonga in https://github.com/unytics/bigfunctions/pull/191


New Contributors
* moldavanka made their first contribution in https://github.com/unytics/bigfunctions/pull/189

**Full Changelog**: https://github.com/unytics/bigfunctions/compare/v0.27...v0.28

Removed debug stuff

FIXES

- doc: generate navigation .nav.yml file even if it does not exist
- python function: do not require bigquery requirement if not needed