fix: optional stake lockup field parameters (#16943)

* fix: optional stake lockup field parameters

* chore: update web3.js/src/stake-program.ts

Co-authored-by: Justin Starry <justin.m.starry@gmail.com>

* chore: prettier

Co-authored-by: Justin Starry <justin.m.starry@gmail.com>
Co-authored-by: Justin Starry <justin@solana.com>

web3.js/test/stake-program.test.ts

@@ -367,7 +367,6 @@ describe('StakeProgram', () => {
             authorized.publicKey,
             authorized.publicKey,
           ),
-          lockup: new Lockup(0, 0, new PublicKey(0)),
           lamports: minimumAmount + 42,
         });