fix(make): make sure github action can check schemas change

[DexterYan]

Description, Motivation and Context

• fix ensure-schemas-are-generated task not detect schema change by git status --short
• change to dynamic path --output-base=$$(pwd)/../../../ \

Here is an example.
current non-working one https://github.com/replicatedhq/troubleshoot/actions/runs/11336833376/job/31527432789?pr=1648#step:7:76
you can find that result of git status -short was not picked by github action.

In fixed one https://github.com/replicatedhq/troubleshoot/actions/runs/11355501407/job/31584952502?pr=1648

it has been picked up.

Checklist

• New and existing tests pass locally with introduced changes.
• Tests for the changes have been added (for bug fixes / features)
• The commit message(s) are informative and highlight any breaking changes
• Any documentation required has been added/updated. For changes to https://troubleshoot.sh/ create a PR here

Does this PR introduce a breaking change?

• Yes
• No