fix(integration): update ashby providers.yaml (#3082)

<!-- Describe the problem and your solution --> 
- update providers.yaml for ashby. Add credentials section
- Add gotcha for ashby. 

<!-- Issue ticket number and link (if applicable) -->

<!-- Testing instructions (skip if just adding/editing providers) -->

docs-v2/integrations/all/ashby.mdx

@@ -27,6 +27,7 @@ API configuration: [`ashby`](https://nango.dev/providers.yaml)
 ## API gotchas
 
 - Ashby gives you only an `API Key` but uses Basic auth for the API. Pass the `API Key` as the username to Nango and leave the password blank.
+- The `apiKey.info` scope is required for the api key to pass verification.
 
 
 <Note>Add Getting Started links and Gotchas by [editing this page](https://github.com/nangohq/nango/tree/master/docs-v2/integrations/all/ashby.mdx)</Note>

packages/shared/providers.yaml

@@ -425,6 +425,17 @@ ashby:
             method: POST
             endpoint: apiKey.info
     docs: https://docs.nango.dev/integrations/all/ashby
+    credentials:
+        username:
+            type: string
+            title: API Key
+            description: The API Key of your Ashby account
+        password:
+            type: string
+            title: ''
+            description: ''
+            default_value: ''
+            hidden: true
 
 atlassian:
     display_name: Atlassian