Regenerate client from commit 23b5e7e of spec repo (#2931)

Co-authored-by: ci.datadog-api-spec <packages@datadoghq.com> 61082ee

Author: NaOHman

datadog_api_client.v1.api.html

@@ -3127,7 +3127,8 @@ <h2 id="submodules">Submodules<a class="headerlink" href="#submodules" title="Li
 <dl class="py method">
 <dt class="sig sig-object py" id="datadog_api_client.v1.api.metrics_api.MetricsApi.list_metrics">
 <span class="sig-name descname"><span class="pre">list_metrics</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">q</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">str</span></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">→</span> <span class="sig-return-typehint"><a class="reference internal" href="datadog_api_client.v1.model.html#datadog_api_client.v1.model.metric_search_response.MetricSearchResponse" title="datadog_api_client.v1.model.metric_search_response.MetricSearchResponse"><span class="pre">MetricSearchResponse</span></a></span></span><a class="headerlink" href="#datadog_api_client.v1.api.metrics_api.MetricsApi.list_metrics" title="Link to this definition">¶</a></dt>
-<dd><p>Search metrics.</p>
+<dd><p>Search metrics. <strong>Deprecated</strong>.</p>
+<p><strong>Note</strong> : This endpoint is deprecated. Use <code class="docutils literal notranslate"><span class="pre">/api/v2/metrics</span></code> instead.</p>
 <p>Search for metrics from the last 24 hours in Datadog.</p>
 <dl class="field-list simple">
 <dt class="field-odd">Parameters<span class="colon">:</span></dt>