fix: resolve executable against PATH instead of cwd on Windows

[iankhou]

Describe the bug

On Windows, programs will prefer executables in the current working directory over those in path e.g. a node.exe file in the working directory. This is not the intended behavior, and can cause problems when the developer expects to use executables in their PATH.

Regression Issue

• Select this option if this issue appears to be a regression.

Last Known Working CDK Version

No response

Expected Behavior

Prefer executables on PATH over cwd.

Current Behavior

Searches for executables in cwd before consulting PATH.

Reproduction Steps

N/A.

Possible Solution

No response

Additional Information/Context

No response

CDK CLI Version

N/A

Framework Version

No response

Node.js Version

All

OS

Windows

Language

TypeScript

Language Version

No response

Other information

No response

[iankhou]

Going to update the docs instead to document this behavior with a trust boundary. cdk.out should not be trusted unless generated by a user on their own system.