Add warning to S3 and SparkS3 if region is not set.

Co-authored-by: yabel <iabelogl10@mts.ru>

Author: dolfinus

onetl/connection/file_connection/s3.py

@@ -137,7 +137,7 @@ def _validate_port(cls, values):
         values["port"] = 443 if values["protocol"] == "https" else 80
         return values
 
-    @validator("region")
+    @validator("region", always=True)
     def _region_is_recommended(cls, value):
         if not value:
             warnings.warn(

onetl/connection/file_df_connection/spark_s3/connection.py

@@ -408,7 +408,7 @@ def _check_java_class_imported(cls, spark: SparkSession) -> SparkSession:
 
         return spark
 
-    @validator("region")
+    @validator("region", always=True)
     def _region_is_recommended(cls, value):
         if not value:
             warnings.warn(