Revert "test(boot): skip basicFlows test until #9939 is fixed"

This reverts commit 064ff1a.

Now that the underlying issue is fixed, we can re-enable this
formerly-flaky test. Thanks @michaelfig for your patience.

packages/boot/test/orchestration/restart-contracts.test.ts

@@ -183,9 +183,7 @@ test.serial('stakeAtom', async t => {
 // restarting that one. For them to share bootstrap they'll each need a unique
 // instance name, which will require paramatizing the the two builders scripts
 // and the two core-eval functions.
-//
-// TODO(#9939): Flaky under Node.js until liveslots problem exposed by vows is fixed.
-test.serial.skip('basicFlows', async t => {
+test.serial('basicFlows', async t => {
   const {
     walletFactoryDriver,
     buildProposal,