feat(privateca): update the API

#### privateca:v1

The following keys were added:
- schemas.CertificateDescription.properties.tbsCertificateDigest.description
- schemas.CertificateDescription.properties.tbsCertificateDigest.type

Author: yoshi-automation

discovery/privateca-v1.json

@@ -1605,7 +1605,7 @@
       }
     }
   },
-  "revision": "20240619",
+  "revision": "20240819",
   "rootUrl": "https://privateca.googleapis.com/",
   "schemas": {
     "AccessUrls": {
@@ -2113,6 +2113,10 @@
           "$ref": "KeyId",
           "description": "Provides a means of identifiying certificates that contain a particular public key, per https://tools.ietf.org/html/rfc5280#section-4.2.1.2."
         },
+        "tbsCertificateDigest": {
+          "description": "The hash of the pre-signed certificate, which will be signed by the CA. Corresponds to the TBS Certificate in https://tools.ietf.org/html/rfc5280#section-4.1.2. The field will always be populated.",
+          "type": "string"
+        },
         "x509Description": {
           "$ref": "X509Parameters",
           "description": "Describes some of the technical X.509 fields in a certificate."

src/apis/privateca/v1.ts

@@ -462,6 +462,10 @@ export namespace privateca_v1 {
      * Provides a means of identifiying certificates that contain a particular public key, per https://tools.ietf.org/html/rfc5280#section-4.2.1.2.
      */
     subjectKeyId?: Schema$KeyId;
+    /**
+     * The hash of the pre-signed certificate, which will be signed by the CA. Corresponds to the TBS Certificate in https://tools.ietf.org/html/rfc5280#section-4.1.2. The field will always be populated.
+     */
+    tbsCertificateDigest?: string | null;
     /**
      * Describes some of the technical X.509 fields in a certificate.
      */