docs: A comment for field parent in message `.google.cloud.oslogin.…

…v1beta.SignSshPublicKeyRequest` is changed (#7472)

PiperOrigin-RevId: 646243563
Source-Link: googleapis/googleapis@e4e39fe
Source-Link: googleapis/googleapis-gen@09e7fc1
Copy-Tag: eyJwIjoiT3NMb2dpbi8uT3dsQm90LnlhbWwiLCJoIjoiMDllN2ZjMWEwNGY2ZjYxNWJhMDc2ZTJhZWQ1YWJiNzE0YjhhM2I5NyJ9

OsLogin/src/V1beta/Gapic/OsLoginServiceGapicClient.php

@@ -730,10 +730,7 @@ public function importSshPublicKey($sshPublicKey, array $optionalArgs = [])
      *     @type string $sshPublicKey
      *           The SSH public key to sign.
      *     @type string $parent
-     *           The parent project and zone for the signing request. This is needed to
-     *           properly ensure per-organization ISS processing and potentially to provide
-     *           for the possibility of zone-specific certificates used in the signing
-     *           process.
+     *           The parent project and region for the signing request.
      *     @type RetrySettings|array $retrySettings
      *           Retry settings to use for this call. Can be a {@see RetrySettings} object, or an
      *           associative array of retry settings parameters. See the documentation on