Make S3 region mandatory

Author: dolfinus

docs/changelog/next_release/+.breaking.rst

@@ -0,0 +1 @@
+Make S3 connection ``region`` a mandatory option.

syncmaster/dto/connections.py

@@ -175,8 +175,8 @@ class S3ConnectionDTO(ConnectionDTO):
     secret_key: str
     bucket: str
     bucket_style: Literal["domain", "path"]
+    region: str
     additional_params: dict = field(default_factory=dict)
-    region: str | None = None
     protocol: str = "https"
     type: ClassVar[str] = "s3"
 

syncmaster/schemas/v1/connections/s3.py

@@ -20,8 +20,8 @@ class ReadS3ConnectionDataSchema(BaseModel):
     host: str
     bucket: str
     protocol: Literal["http", "https"] = "https"
+    region: str
     port: int | None = Field(default=None, gt=0, le=65535, validate_default=True)  # noqa: WPS432
-    region: str | None = None
     bucket_style: Literal["domain", "path"] = "path"
     additional_params: dict = Field(default_factory=dict)