feat(beyondcorp): update the api

#### beyondcorp:v1alpha

The following keys were deleted:
- resources.projects.resources.locations.resources.global.resources.securityGateways.methods.create (Total Keys: 16)
- resources.projects.resources.locations.resources.global.resources.securityGateways.methods.delete (Total Keys: 15)
- resources.projects.resources.locations.resources.global.resources.securityGateways.methods.get (Total Keys: 11)
- resources.projects.resources.locations.resources.global.resources.securityGateways.methods.list (Total Keys: 20)
- resources.projects.resources.locations.resources.global.resources.securityGateways.methods.patch (Total Keys: 17)

The following keys were added:
- resources.projects.resources.locations.resources.securityGateways.methods.create (Total Keys: 16)
- resources.projects.resources.locations.resources.securityGateways.methods.delete (Total Keys: 15)
- resources.projects.resources.locations.resources.securityGateways.methods.get (Total Keys: 11)
- resources.projects.resources.locations.resources.securityGateways.methods.list (Total Keys: 20)
- resources.projects.resources.locations.resources.securityGateways.methods.patch (Total Keys: 17)

docs/dyn/beyondcorp_v1alpha.projects.locations.html

@@ -119,11 +119,6 @@ <h2>Instance Methods</h2>
 </p>
 <p class="firstline">Returns the connectors Resource.</p>
 
-<p class="toc_element">
-  <code><a href="beyondcorp_v1alpha.projects.locations.global_.html">global_()</a></code>
-</p>
-<p class="firstline">Returns the global_ Resource.</p>
-
 <p class="toc_element">
   <code><a href="beyondcorp_v1alpha.projects.locations.insights.html">insights()</a></code>
 </p>
@@ -139,6 +134,11 @@ <h2>Instance Methods</h2>
 </p>
 <p class="firstline">Returns the operations Resource.</p>
 
+<p class="toc_element">
+  <code><a href="beyondcorp_v1alpha.projects.locations.securityGateways.html">securityGateways()</a></code>
+</p>
+<p class="firstline">Returns the securityGateways Resource.</p>
+
 <p class="toc_element">
   <code><a href="#close">close()</a></code></p>
 <p class="firstline">Close httplib2 connections.</p>