fix: Delete credentials unsupported authorization type

simples3.go

@@ -260,7 +260,7 @@ func (s3 *S3) FileDelete(u DeleteInput) error {
 	s3.writeStringToSign(h, t, req)
 
 	auth := bytes.NewBufferString(algorithm)
-	auth.Write([]byte("Credential=" + s3.AccessKey + "/" + s3.creds(t)))
+	auth.Write([]byte(" Credential=" + s3.AccessKey + "/" + s3.creds(t)))
 	auth.Write([]byte{',', ' '})
 	auth.Write([]byte("SignedHeaders="))
 	writeHeaderList(auth, req)

simples3_test.go

@@ -59,7 +59,6 @@ func TestS3_FileUpload(t *testing.T) {
 			args: args{
 				UploadInput{
 					Bucket:      os.Getenv("AWS_S3_BUCKET"),
-					Bucket:      "zerodha-testbucket",
 					ObjectKey:   "xyz/image.png",
 					ContentType: "image/png",
 					FileName:    "avatar.png",