chore: add version number when starting sandbox (#10935)

Fixes underlying issue presented in #10687 

Seems to have been removed during a refactor

Note this is untested!

yarn-project/aztec/src/cli/aztec_start_action.ts

@@ -6,11 +6,18 @@ import {
   startHttpRpcServer,
 } from '@aztec/foundation/json-rpc/server';
 import { type LogFn, type Logger } from '@aztec/foundation/log';
+import { fileURLToPath } from '@aztec/foundation/url';
+
+import { readFileSync } from 'fs';
+import { dirname, resolve } from 'path';
 
 import { createSandbox } from '../sandbox.js';
 import { github, splash } from '../splash.js';
 import { createAccountLogs, extractNamespacedOptions, installSignalHandlers } from './util.js';
 
+const packageJsonPath = resolve(dirname(fileURLToPath(import.meta.url)), '../../package.json');
+const cliVersion: string = JSON.parse(readFileSync(packageJsonPath).toString()).version;
+
 export async function aztecStart(options: any, userLog: LogFn, debugLogger: Logger) {
   // list of 'stop' functions to call when process ends
   const signalHandlers: Array<() => Promise<void>> = [];
@@ -19,7 +26,8 @@ export async function aztecStart(options: any, userLog: LogFn, debugLogger: Logg
   if (options.sandbox) {
     const sandboxOptions = extractNamespacedOptions(options, 'sandbox');
     userLog(`${splash}\n${github}\n\n`);
-    userLog(`Setting up Aztec Sandbox, please stand by...`);
+    userLog(`Setting up Aztec Sandbox ${cliVersion}, please stand by...`);
+
     const { aztecNodeConfig, node, pxe, stop } = await createSandbox({
       enableGas: sandboxOptions.enableGas,
       l1Mnemonic: options.l1Mnemonic,