feat: increase default JWT_LEEWAY in open_id_connect to 1.0 seconds

The default value defined in the jwt module is 0 seconds, so when the
time is off just by a few milliseconds, the token validation fails with
error "The token is not yet valid (iat)".

Author: jirutka

social_core/backends/open_id_connect.py

@@ -54,7 +54,7 @@ class OpenIdConnectAuth(BaseOAuth2):
     USERNAME_KEY = "preferred_username"
     JWT_ALGORITHMS = ["RS256"]
     JWT_DECODE_OPTIONS = {}
-    JWT_LEEWAY = 0  # seconds
+    JWT_LEEWAY = 1.0  # seconds
     # When these options are unspecified, server will choose via openid autoconfiguration
     ID_TOKEN_ISSUER = ""
     ACCESS_TOKEN_URL = ""