Make the claims_imports optional in the config

Author: sandhose

crates/config/src/sections/upstream_oauth2.rs

@@ -300,6 +300,7 @@ pub struct Provider {
 
     /// How claims should be imported from the `id_token` provided by the
     /// provider
+    #[serde(default)]
     pub claims_imports: ClaimsImports,
 }
 

docs/config.schema.json

@@ -1751,7 +1751,6 @@
         }
       ],
       "required": [
-        "claims_imports",
         "client_id",
         "id",
         "issuer",
@@ -1769,6 +1768,24 @@
         },
         "claims_imports": {
           "description": "How claims should be imported from the `id_token` provided by the provider",
+          "default": {
+            "displayname": {
+              "action": "ignore",
+              "template": null
+            },
+            "email": {
+              "action": "ignore",
+              "set_email_verification": "import",
+              "template": null
+            },
+            "localpart": {
+              "action": "ignore",
+              "template": null
+            },
+            "subject": {
+              "template": null
+            }
+          },
           "allOf": [
             {
               "$ref": "#/definitions/ClaimsImports"