fix: adjust where grafana password is stored for kubeconfig deploys

[qdzlug]

Proposed changes

This minor change updates where the kubeconfig deployments store the prometheus/grafana password; it is now
stored in the secrets project, not the main project configuration.

Closes #204

Checklist

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• I have written my commit messages in the Conventional Commits format.
• I have read the CONTRIBUTING doc
• I have added tests (when possible) that prove my fix is effective or that my feature works
• I have checked that all unit tests pass after adding my changes
• I have updated necessary documentation
• [ X I have rebased my branch onto master
• I will ensure my PR is targeting the master branch and pulling from my branch from my own fork

[4141done]

👍 🐳 👍

[qdzlug]

I'm not sure why the runner tests are failing, as they are running fine for me on these platforms locally. Going to merge and move on to the next bug; will come back to this if it persists.