worker: add an option to upload public objects to aws.s3 target

If the object is marked as public, its direct download URL will be returned
instead of the presigned one.

Signed-off-by: Ondřej Budai <ondrej@budai.cz>

internal/target/aws_target.go

@@ -42,6 +42,7 @@ type AWSS3TargetOptions struct {
 	Endpoint            string `json:"endpoint"`
 	CABundle            string `json:"ca_bundle"`
 	SkipSSLVerification bool   `json:"skip_ssl_verification"`
+	Public              bool   `json:"public,omitempty"`
 }
 
 func (AWSS3TargetOptions) isTargetOptions() {}