Invalid template is built (InnovationSandboxSbxAccount.template)

[limejuny]

When I build this solution with node v14.20.1, deployment/regional-s3-assets/InnovationSandboxSbxAccount.template is created like this.

...
    "SandboxServiceRoleDAAF0320": {
      "Type": "AWS::IAM::Role",
      "Properties": {
        "AssumeRolePolicyDocument": {
          "Statement": [
            {
              "Action": "sts:AssumeRole",
              "Effect": "Allow",
              "Principal": {
                "Service": "apigateway.amazonaws.com"
              }
            },
            {
              "Action": "sts:AssumeRole",
              "Effect": "Allow",
              "Principal": {
                "Service": "athena.amazonaws.com"
              }
            },
            {
              "Action": "sts:AssumeRole",
              "Effect": "Allow",
              "Principal": {
                "Service": "autoscaling.amazonaws.com"
              }
            },

...

But the sample template and source/test/__snapshots__/cdk.test.ts.snap is like this.

...
    "SandboxServiceRoleDAAF0320": {
      "Type": "AWS::IAM::Role",
      "Properties": {
        "AssumeRolePolicyDocument": {
          "Statement": [
            {
              "Action": "sts:AssumeRole",
              "Effect": "Allow",
              "Principal": {
                "Service": [
                  "apigateway.amazonaws.com",
                  "athena.amazonaws.com",
                  "autoscaling.amazonaws.com",
                  "cloudtrail.amazonaws.com",
...

In this reason, the stack is fail with message Cannot exceed quota for ACLSizePerRole, and I get the same error even if increase the service quota to the maximum. (no error occurs when use sample template.)

And when I try to build this solution with node v16.18.0, it doesn't build successfully with this message.

...
npm install
npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR!
npm ERR! While resolving: [email protected]
npm ERR! Found: [email protected]
npm ERR! node_modules/jest
npm ERR!   dev jest@"^25.5.0" from the root project
npm ERR!
npm ERR! Could not resolve dependency:
npm ERR! peer jest@"^26.4.2" from @aws-cdk/[email protected]
npm ERR! node_modules/@aws-cdk/assert
npm ERR!   dev @aws-cdk/assert@"1.64.1" from the root project
npm ERR!
npm ERR! Fix the upstream dependency conflict, or retry
npm ERR! this command with --force, or --legacy-peer-deps
npm ERR! to accept an incorrect (and potentially broken) dependency resolution.
npm ERR!
npm ERR! See /home/ubuntu/.npm/eresolve-report.txt for a full report.
...

If this code doesn't wrong, I think it because node version's difference. What is the project's standard node version? I think a node version for the build should be specified in README (or any other place).

Thanks.