fix: some typos on .md and in comments

doc: updaete on the doc
doc: add those details to the CHANGELOG

CHANGELOG.md

@@ -2,6 +2,13 @@
 
 ## Unreleased
 
+## Fixed
+
+- Goole Big Query:
+    - fix Validation error when all GoogleCredentials are not set (only the `project_id` is required).
+    - Explicit error information when no data to return.
+    - fallback on normal GoogleCredentials connexion mode when jwt-token is not valid aymore.
+
 ### [4.9.0] 2023-09-20
 
 ## Changed

doc/connectors/google_big_query.md

@@ -15,8 +15,8 @@ For authentication, download an authentication file from console.developper.com
 and use the values here. This is an oauth2 credential file. For more information
 see this: http://gspread.readthedocs.io/en/latest/oauth2.html
 
-* `type`: str
-* `project_id`: str
+* `type`: str, required
+* `project_id`: str, required
 * `private_key_id`: str
 * `private_key`: str
 * `client_email`: str

tests/google_big_query/test_google_big_query.py

@@ -826,7 +826,7 @@ def test_optional_fields_validator_for_google_creds():
     incomplete_credentials_with_no_project_id = {
         'type': 'service_account',
     }
-    # should raise an errro if the project_id is not set
+    # should raise an error if the project_id is not set
     with pytest.raises(ValidationError) as _:
         _ = GoogleBigQueryConnector(
             name='something', credentials=incomplete_credentials_with_no_project_id

toucan_connectors/google_big_query/google_big_query_connector.py

@@ -320,7 +320,7 @@ def _bigquery_variable_transformer(variable: str):
         """Add surrounding for parameters injection"""
         return f'@{variable}'
 
-    def _bigquery_client_with_google_creds(self):
+    def _bigquery_client_with_google_creds(self) -> bigquery.Client:
         try:
             credentials = GoogleBigQueryConnector._get_google_credentials(
                 self.credentials, self.scopes