Fixes #23576: Note that the CA bundle applies only with SSL verification on

The built-in CA bundle is only used when SSL verification is enabled,
so say so in the blank-value sentence of the CA File Path section.

docs/models/extras/webhook.md

@@ -85,7 +85,7 @@ Controls whether validation of the receiver's SSL certificate is enforced when H
 
 ### CA File Path
 
-The file path to a particular certificate authority (CA) file to use when validating the receiver's SSL certificate. If left blank, validation uses NetBox's built-in CA bundle. The host's system trust store and the `REQUESTS_CA_BUNDLE` environment variable are ignored, so a receiver whose certificate is signed by a private CA must have that CA specified here.
+The file path to a particular certificate authority (CA) file to use when validating the receiver's SSL certificate. If left blank (and SSL verification is enabled), validation uses NetBox's built-in CA bundle. The host's system trust store and the `REQUESTS_CA_BUNDLE` environment variable are ignored, so a receiver whose certificate is signed by a private CA must have that CA specified here.
 
 The file replaces the built-in bundle for this webhook. To keep trusting public CAs as well, provide a bundle that includes them.