fix: update setup.py

[sabuhigr]

google-auth-httplib2:0.1.0 | Reference: CVE-2021-21240 | CVSS Score: 7.5 | Category: CWE-400 | httplib2 is a comprehensive HTTP client library for Python. In httplib2 before version 0.19.0, a malicious server which responds with long series of "\xa0" characters in the "www-authenticate" header may cause Denial of Service (CPU burn while parsing header) of the httplib2 client accessing said server. This is fixed in version 0.19.0 which contains a new implementation of auth headers parsing using the pyparsing library.

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Fixes #113 🦕

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[conventional-commit-lint-gcf]

🤖 I detect that the PR title and the commit message differ and there's only one commit. To use the PR title for the commit history, you can use Github's automerge feature with squashing, or use automerge label. Good luck human!

-- conventional-commit-lint bot
https://conventionalcommits.org/

[arithmetic1728]

@sabuhigr could you sign the CLA? Thanks!

[arithmetic1728]

@sabuhigr and amend the commit message to "fix: update setup.py" using git commit --amend, thanks!

[sabuhigr]

I have signed, @arithmetic1728.Thanks!