[js-token-library] fix createSetAuthorityIx module declarations (#846)

Author: paul-schaaf

token/js/module.d.ts

@@ -186,6 +186,7 @@ declare module '@solana/spl-token' {
       programId: PublicKey,
       account: PublicKey,
       newAuthority: PublicKey | null,
+      authorityType: AuthorityType,
       authority: PublicKey,
       multiSigners: Array<Account>,
     ): TransactionInstruction;

token/js/module.flow.js

@@ -178,6 +178,7 @@ declare module '@solana/spl-token' {
       programId: PublicKey,
       account: PublicKey,
       newAuthority: PublicKey | null,
+      authorityType: AuthorityType,
       authority: PublicKey,
       multiSigners: Array<Account>,
     ): TransactionInstruction;