feat: allow users to pause prebuilt workspace reconciliation (#18700)

This PR provides two commands:
* `coder prebuilds pause`
* `coder prebuilds resume`

These allow the suspension of all prebuilds activity, intended for use
if prebuilds are misbehaving.

enterprise/cli/testdata/coder_--help.golden

@@ -17,6 +17,7 @@ SUBCOMMANDS:
     features           List Enterprise features
     groups             Manage groups
     licenses           Add, delete, and list licenses
+    prebuilds          Manage Coder prebuilds
     provisioner        View and manage provisioner daemons and jobs
     server             Start a Coder server
 

enterprise/cli/testdata/coder_prebuilds_--help.golden

@@ -0,0 +1,24 @@
+coder v0.0.0-devel
+
+USAGE:
+  coder prebuilds
+
+  Manage Coder prebuilds
+
+  Aliases: prebuild
+
+  Administrators can use these commands to manage prebuilt workspace settings.
+    - Pause Coder prebuilt workspace reconciliation.:
+  
+       $ coder prebuilds pause
+  
+    - Resume Coder prebuilt workspace reconciliation if it has been paused.:
+  
+       $ coder prebuilds resume
+
+SUBCOMMANDS:
+    pause     Pause prebuilds
+    resume    Resume prebuilds
+
+———
+Run `coder --help` for a list of global options.

enterprise/cli/testdata/coder_prebuilds_pause_--help.golden

@@ -0,0 +1,9 @@
+coder v0.0.0-devel
+
+USAGE:
+  coder prebuilds pause
+
+  Pause prebuilds
+
+———
+Run `coder --help` for a list of global options.

enterprise/cli/testdata/coder_prebuilds_resume_--help.golden

@@ -0,0 +1,9 @@
+coder v0.0.0-devel
+
+USAGE:
+  coder prebuilds resume
+
+  Resume prebuilds
+
+———
+Run `coder --help` for a list of global options.