security/py-social-auth-core: Allow build with py-google-auth 2.55.0+

• Bump PORTREVISION for package change

Obtained from: https://github.com/python-social-auth/social-core/commit/4188a5f03e274b76adf58d7b45ef8a45f8ddb7fa

		https://github.com/python-social-auth/social-core/commit/acf7394ecbe33e49b278fd1faf35eaf655af24f6

Approved by: portmgr (blanket)