fixup! test(a3p): add test for snapshots export and restore

a3p-integration/proposals/z:acceptance/.yarn/patches/@agoric-synthetic-chain-npm-0.1.0-148de716a6.patch

@@ -0,0 +1,13 @@
+diff --git a/dist/upgrade-test-scripts/env_setup.sh b/dist/upgrade-test-scripts/env_setup.sh
+index 617a0fbe7efdfa457e28fc52806dba1b323930d8..25f52a6cf133dca830bd0dcd47c91700e6a8effe 100755
+--- a/dist/upgrade-test-scripts/env_setup.sh
++++ b/dist/upgrade-test-scripts/env_setup.sh
+@@ -100,7 +100,7 @@ killAgd() {
+   AGD_PID=$(cat $HOME/.agoric/agd.pid)
+   kill $AGD_PID
+   rm $HOME/.agoric/agd.pid
+-  wait $AGD_PID || true
++  tail --pid=$AGD_PID -f /dev/null || true
+ }
+
+ provisionSmartWallet() {

a3p-integration/proposals/z:acceptance/package.json

@@ -5,7 +5,7 @@
   "type": "module",
   "license": "Apache-2.0",
   "dependencies": {
-    "@agoric/synthetic-chain": "^0.1.0",
+    "@agoric/synthetic-chain": "patch:@agoric/synthetic-chain@npm%3A0.1.0#~/.yarn/patches/@agoric-synthetic-chain-npm-0.1.0-148de716a6.patch",
     "ava": "^6.1.2"
   },
   "ava": {

a3p-integration/proposals/z:acceptance/state-sync-snapshots-test.sh

@@ -1,5 +1,7 @@
 #!/bin/bash
 
+set -e
+
 source /usr/src/upgrade-test-scripts/env_setup.sh
 
 killAgd

a3p-integration/proposals/z:acceptance/yarn.lock

@@ -5,7 +5,7 @@ __metadata:
   version: 8
   cacheKey: 10c0
 
-"@agoric/synthetic-chain@npm:^0.1.0":
+"@agoric/synthetic-chain@npm:0.1.0":
   version: 0.1.0
   resolution: "@agoric/synthetic-chain@npm:0.1.0"
   dependencies:
@@ -19,6 +19,20 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@agoric/synthetic-chain@patch:@agoric/synthetic-chain@npm%3A0.1.0#~/.yarn/patches/@agoric-synthetic-chain-npm-0.1.0-148de716a6.patch":
+  version: 0.1.0
+  resolution: "@agoric/synthetic-chain@patch:@agoric/synthetic-chain@npm%3A0.1.0#~/.yarn/patches/@agoric-synthetic-chain-npm-0.1.0-148de716a6.patch::version=0.1.0&hash=4a65eb"
+  dependencies:
+    "@endo/zip": "npm:^1.0.1"
+    better-sqlite3: "npm:^9.4.0"
+    chalk: "npm:^5.3.0"
+    execa: "npm:^8.0.1"
+  bin:
+    synthetic-chain: dist/cli/cli.js
+  checksum: 10c0/e974038161b1a9570912a02d9366c6680bc13ee3dfd0e49d06e5ce5e93dbcddf04d1d4cd453af0969bf29ccfe96ce3e141a214539722449add90b13f0785f1f7
+  languageName: node
+  linkType: hard
+
 "@endo/zip@npm:^1.0.1":
   version: 1.0.1
   resolution: "@endo/zip@npm:1.0.1"
@@ -1961,7 +1975,7 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "root-workspace-0b6124@workspace:."
   dependencies:
-    "@agoric/synthetic-chain": "npm:^0.1.0"
+    "@agoric/synthetic-chain": "patch:@agoric/synthetic-chain@npm%3A0.1.0#~/.yarn/patches/@agoric-synthetic-chain-npm-0.1.0-148de716a6.patch"
     ava: "npm:^6.1.2"
   languageName: unknown
   linkType: soft