Update vppbranch var for Calico/VPP v3.32.0 (#2791)

Author: onong

calico_versioned_docs/version-3.32/variables.js

@@ -19,7 +19,7 @@ const variables = {
   manifestsUrl: 'https://raw.githubusercontent.com/projectcalico/calico/v3.32.0',
   releases,
   registry: '',
-  vppbranch: 'v3.31.0',
+  vppbranch: 'v3.32.0',
   envoyVersion: '1.5.6',
   tigeraOperator: releases[0]['tigera-operator'],
   tigeraOperatorVersionShort: releases[0]['tigera-operator'].version.split('.').slice(0, 2).join('.'),