Sync flask-google-login with the maintenance update of Create a Flask Application With Google Login (#922)

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

Author: realpython-bot

flask-google-login/Pipfile

@@ -6,11 +6,11 @@ verify_ssl = true
 [dev-packages]
 
 [packages]
-requests = "~=2.21.0"
-oauthlib = "~=3.0.1"
-Flask = "~=1.0.2"
-pyopenssl = "~=19.0.0"
-flask-login = "~=0.4.1"
+requests = "==2.34.2"
+oauthlib = "==4.0.0"
+Flask = "==3.1.3"
+pyopenssl = "==26.4.0"
+flask-login = "==0.6.3"
 
 [requires]
 python_version = "3"