feat: 🎸 ICU-3529 add rotating credentials warning for azure

Add "Boundary does not yet support rotating credentials" warning message
for Azure provider

✅ Closes: ICU-3529

addons/core/translations/resources/en-us.yaml

@@ -97,6 +97,10 @@ host-catalog:
     azure_client_id:
       label: Client ID
       help: The client ID for the client you want Boundary to use.
+    azure_choose_a_provider:
+      description: There are several built-in plugins for the most common providers. You can choose from on of the included plugins or use a custom plugin. Boundary does not yet support rotating credentials.
+    aws_choose_a_provider:
+      description: There are several built-in plugins for the most common providers. You can choose from on of the included plugins or use a custom plugin.
 host-set:
   title: Host Set
   title_plural: Host Sets

ui/admin/app/components/form/host-catalog/aws/index.hbs

@@ -77,7 +77,9 @@
 
     <form.fieldset>
       <:title>{{t 'titles.choose-a-provider'}}</:title>
-      <:description>{{t 'descriptions.choose-a-provider'}}</:description>
+      <:description>
+        {{t 'resources.host-catalog.form.aws_choose_a_provider.description'}}
+      </:description>
 
       <:body>
         <form.radioGroup

ui/admin/app/components/form/host-catalog/azure/index.hbs

@@ -76,7 +76,9 @@
     </form.fieldset>
     <form.fieldset>
       <:title>{{t 'titles.choose-a-provider'}}</:title>
-      <:description>{{t 'descriptions.choose-a-provider'}}</:description>
+      <:description>
+        {{t 'resources.host-catalog.form.azure_choose_a_provider.description'}}
+      </:description>
 
       <:body>
         <form.radioGroup