Enable Remote Shell

[thestephenmarshall]

What does this PR do?

✅ This PR does not affect any development or production code! ⭐️

As a bonus for devs, it would be great to be able to log into PR review environments from our local machines in order to inspect the running file system and debug any issues.

Usage: make reviewShell pr=XXXX

The supporting bin stubs were lifted directly from nitro-web and only minor naming nitro-web -> playbook was updated within them.

PR Needs to Merge First

make reviewShell pr=3202
WARNING: The requested image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8) and no specific platform was requested
docker: Error response from daemon: failed to create task for container: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: exec: "bin/cluster_for_review_stack": stat bin/cluster_for_review_stack: no such file or directory: unknown.
image-registry.powerapp.cloud/app/deployer:master-467d8015ffc91fc62c347367db792bb6de0eeea8-1439
./playbook-website/bin/deployer bash -lc "playbook-website/bin/remote_exec --time-to-live 3h --cluster  --namespace playbook-pr3202 bash --login"
image-registry.powerapp.cloud/app/deployer:master-467d8015ffc91fc62c347367db792bb6de0eeea8-1439
WARNING: The requested image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8) and no specific platform was requested
bash: playbook-website/bin/remote_exec: /usr/bin/env: bad interpreter: Permission denied
make: *** [reviewShell] Error 126

The above output just states that the specified bin stubs do no exist yet in master, so it is not possible to run them.

How to Test

1. Merge this PR to master
2. run the command above
3. verify that you are logged into the remote shell

Checklist:

• LABELS Add a label: enhancement, bug, improvement, new kit, deprecated, or breaking. See Changelog & Labels for details.
• DEPLOY I have added the milano label to show I'm ready for a review.
• TESTS I have added test coverage to my code.

[thestephenmarshall]

@markdoeswork beat me to the punch last year with #2521