chore: attempt to fix badges

based on https://docs.github.com/en/actions/monitoring-and-troubleshooting-workflows/monitoring-workflows/adding-a-workflow-status-badge#using-the-branch-parameter

supersedes #5150

README.md

@@ -1,8 +1,8 @@
 # KPI
 
-[![Python Build Status](https://github.com/kobotoolbox/kpi/workflows/pytest/badge.svg?branch=main)](https://github.com/kobotoolbox/kpi/actions?query=workflow%3Apytest+branch%3Amain)
+[![Python Build Status](https://github.com/kobotoolbox/kpi/actions/workflows/pytest.yml/badge.svg?branch=main)](https://github.com/kobotoolbox/kpi/actions?query=workflow%3Apytest+branch%3Amain)
 [![Python Coverage Status](https://coveralls.io/repos/github/kobotoolbox/kpi/badge.svg?branch=main)](https://coveralls.io/github/kobotoolbox/kpi?branch=main)
-[![JavaScript Build Status](https://github.com/kobotoolbox/kpi/workflows/npm-test/badge.svg?branch=main)](https://github.com/kobotoolbox/kpi/actions?query=workflow%3Anpm-test+branch%3Amain)
+[![JavaScript Build Status](https://github.com/kobotoolbox/kpi/actions/workflows/npm-test.yml/badge.svg?branch=main)](https://github.com/kobotoolbox/kpi/actions?query=workflow%3Anpm-test+branch%3Amain)
 
 For production always use a specific release branch, `main` branch may include breaking changes. Run `git branch -rl 'origin/release/*'` to list release branches and then switch to a release branch of your choice.