security/py-social-auth-core: Allow build with py-google-auth 2.47.0+

• Bump PORTREVISION for package change

Approved by: portmgr (blanket)
Obtained from: https://github.com/python-social-auth/social-core/commit/58f5eafc5758dea40945b1c4ef71b4986dd3b6f1

		https://github.com/python-social-auth/social-core/commit/283cadd057cfca463358c2c81b9cef484ca74de9