Include EIP-5267 discovery in EIP-712 (#3969)

Co-authored-by: Francisco <frangio.1@gmail.com>
Co-authored-by: Francisco <fg@frang.io>

test/helpers/governance.js

@@ -84,7 +84,7 @@ class GovernorHelper {
       ? // if signature, and either params or reason →
         vote.params || vote.reason
         ? vote
-            .signature({
+            .signature(this.governor, {
               proposalId: proposal.id,
               support: vote.support,
               reason: vote.reason || '',
@@ -96,7 +96,7 @@ class GovernorHelper {
               ),
             )
         : vote
-            .signature({
+            .signature(this.governor, {
               proposalId: proposal.id,
               support: vote.support,
             })