fix(integration_test): Use bash for missed source command

Author: exaby73

integration_test/setup.ts

@@ -183,6 +183,7 @@ function installPythonDependencies() {
 
   execSync("source venv/bin/activate && python3 -m pip install -r requirements.txt", {
     stdio: "inherit",
+    shell: "bash",
   });
 
   process.chdir("../"); // go back to integration_test