docs: Note that keyboard-interactive auth is not supported (#5926)

* docs: Note that keyboard-interactive auth is not supported

* docs: Updates based on feedback

website/content/docs/concepts/credential-management.mdx

@@ -99,7 +99,10 @@ Credential injection is required for the SSH target type, allowing users to inje
 - Usernames and passwords
 - Usernames and public keys
 
-Additional credentials can be brokered to SSH targets after the session is establised using injected credentials.
+Keyboard-interactive authentication is not supported for credential injection.
+When you use Username password credentials, ensure that your SSH server is configured to allow password authentication.
+
+You can broker additional credentials to SSH targets after the session is established using injected credentials.
 
 ### Security considerations
 

website/content/docs/configuration/credential-management/configure-credential-injection.mdx

@@ -24,6 +24,8 @@ Credential injection provides end users with a passwordless experience when they
 
 - You must have a static credential saved in your static credential store or Vault credential store. The credential must correspond to the target to which you want to authenticate.
 
+- Keyboard-interactive authentication is not supported. When you use Username password credentials, ensure that your SSH server is configured to allow password authentication.
+
 ## Configuration
 
 Complete the following steps to configure targets with credential injection:
@@ -79,4 +81,5 @@ Refer to the following topics for more information:
 
 - [Create static credential stores](/boundary/docs/configuration/credential-management/static-cred-boundary)
 - [Create Vault credential stores](/boundary/docs/configuration/credential-management/static-cred-vault)
-- [Target types](/boundary/docs/concepts/domain-model/targets#target-types)
+- [Target types](/boundary/docs/concepts/domain-model/targets#target-types)
+- [Credentials](/boundary/docs/concepts/domain-model/credentials)