chore: update generated docs (#1115)

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Source-Link: https://github.com/googleapis/discovery-artifact-manager/commit/0bed8bdae25d545e796cfcdd7a9bfffff11e69da
Source-Link: https://github.com/googleapis/synthtool/commit/c2de32114ec484aa708d32012d1fa8d75232daf5
diff --git a/docs/dyn/texttospeech_v1.voices.html b/docs/dyn/texttospeech_v1.voices.html
index 2894b2d..7bacbe7 100644
--- a/docs/dyn/texttospeech_v1.voices.html
+++ b/docs/dyn/texttospeech_v1.voices.html
@@ -103,12 +103,12 @@
     { # The message returned to the client by the `ListVoices` method.
     "voices": [ # The list of voices.
       { # Description of a voice supported by the TTS service.
-        "name": "A String", # The name of this voice. Each distinct voice has a unique name.
-        "naturalSampleRateHertz": 42, # The natural sample rate (in hertz) for this voice.
         "ssmlGender": "A String", # The gender of this voice.
+        "name": "A String", # The name of this voice. Each distinct voice has a unique name.
         "languageCodes": [ # The languages that this voice supports, expressed as [BCP-47](https://www.rfc-editor.org/rfc/bcp/bcp47.txt) language tags (e.g. "en-US", "es-419", "cmn-tw").
           "A String",
         ],
+        "naturalSampleRateHertz": 42, # The natural sample rate (in hertz) for this voice.
       },
     ],
   }</pre>