Add "multi-part secrets" section to "Supported secret scanning patterns" article (#57088)

Co-authored-by: Ben Ahmady <32935794+subatoi@users.noreply.github.com>
Co-authored-by: Erin Havens <erinhav@github.com>

src/secret-scanning/data/public-docs.yml

@@ -199,6 +199,7 @@
   isPrivateWithGhas: true
   hasPushProtection: true
   hasValidityCheck: '{% ifversion fpt or ghes %}false{% else %}true{% endif %}'
+  ismultipart: true
   base64Supported: false
   isduplicate: false
 - provider: Amazon AWS

src/secret-scanning/middleware/secret-scanning.ts

@@ -46,6 +46,9 @@ export default async function secretScanning(
     if (entry.isduplicate) {
       entry.secretType += ' <br/><a href="#token-versions">Token versions</a>'
     }
+    if (entry.ismultipart) {
+      entry.secretType += ' <br/><a href="#multi-part-secrets">Multi-part secrets</a>'
+    }
   })
 
   return next()

src/types.ts

@@ -311,6 +311,7 @@ export type SecretScanningData = {
   isPrivateWithGhas: boolean
   hasPushProtection: boolean
   hasValidityCheck: boolean | string
+  ismultipart?: boolean
   base64Supported: boolean
   isduplicate: boolean
 }