feat: add edit-role within user command (#17341)

cli/testdata/coder_users_--help.golden

@@ -8,15 +8,16 @@ USAGE:
   Aliases: user
 
 SUBCOMMANDS:
-    activate    Update a user's status to 'active'. Active users can fully
-                interact with the platform
-    create      
-    delete      Delete a user by username or user_id.
-    list        
-    show        Show a single user. Use 'me' to indicate the currently
-                authenticated user.
-    suspend     Update a user's status to 'suspended'. A suspended user cannot
-                log into the platform
+    activate      Update a user's status to 'active'. Active users can fully
+                  interact with the platform
+    create        
+    delete        Delete a user by username or user_id.
+    edit-roles    Edit a user's roles by username or id
+    list          
+    show          Show a single user. Use 'me' to indicate the currently
+                  authenticated user.
+    suspend       Update a user's status to 'suspended'. A suspended user cannot
+                  log into the platform
 
 ———
 Run `coder --help` for a list of global options.

cli/testdata/coder_users_edit-roles_--help.golden

@@ -0,0 +1,18 @@
+coder v0.0.0-devel
+
+USAGE:
+  coder users edit-roles [flags] <username|user_id>
+
+  Edit a user's roles by username or id
+
+OPTIONS:
+      --roles string-array
+          A list of roles to give to the user. This removes any existing roles
+          the user may have. The available roles are: auditor, member, owner,
+          template-admin, user-admin.
+
+  -y, --yes bool
+          Bypass prompts.
+
+———
+Run `coder --help` for a list of global options.