support aws s3 storage (#720)

skyvern/config.py

@@ -45,6 +45,11 @@ class Settings(BaseSettings):
     # Artifact storage settings
     ARTIFACT_STORAGE_PATH: str = f"{SKYVERN_DIR}/artifacts"
     GENERATE_PRESIGNED_URLS: bool = False
+    AWS_S3_BUCKET_ARTIFACTS: str = "skyvern-artifacts"
+    AWS_S3_BUCKET_SCREENSHOTS: str = "skyvern-screenshots"
+
+    # Supported storage types: local, s3
+    SKYVERN_STORAGE_TYPE: str = "local"
 
     # S3 bucket settings
     AWS_REGION: str = "us-east-1"