Security Monitoring Suppressions - Make expiration date nullable in u…

…pdate payload (#1849)

Co-authored-by: ci.datadog-api-spec <[email protected]>
Co-authored-by: api-clients-generation-pipeline[bot] <54105614+api-clients-generation-pipeline[bot]@users.noreply.github.com> e2b2570

datadog_api_client.v2.model.html

@@ -37445,7 +37445,7 @@ <h1 id="datadog-api-client-v2-model--page-root">datadog_api_client.v2.model<a cl
 <dd class="field-odd"><ul class="simple">
 <li><p><strong>description</strong> (<em>str</em><em>, </em><em>optional</em>) – A description for the suppression rule.</p></li>
 <li><p><strong>enabled</strong> (<em>bool</em><em>, </em><em>optional</em>) – Whether the suppression rule is enabled.</p></li>
-<li><p><strong>expiration_date</strong> (<em>int</em><em>, </em><em>optional</em>) – A Unix millisecond timestamp giving an expiration date for the suppression rule. After this date, it won’t suppress signals anymore.</p></li>
+<li><p><strong>expiration_date</strong> (<em>int</em><em>, </em><em>none_type</em><em>, </em><em>optional</em>) – A Unix millisecond timestamp giving an expiration date for the suppression rule. After this date, it won’t suppress signals anymore. If unset, the expiration date of the suppression rule is left untouched. If set to <code class="docutils literal notranslate"><span class="pre">null</span></code> , the expiration date is removed.</p></li>
 <li><p><strong>name</strong> (<em>str</em><em>, </em><em>optional</em>) – The name of the suppression rule.</p></li>
 <li><p><strong>rule_query</strong> (<em>str</em><em>, </em><em>optional</em>) – The rule query of the suppression rule, with the same syntax as the search bar for detection rules.</p></li>
 <li><p><strong>suppression_query</strong> (<em>str</em><em>, </em><em>optional</em>) – The suppression query of the suppression rule. If a signal matches this query, it is suppressed and not triggered. Same syntax as the queries to search signals in the signal explorer.</p></li>