Refactor the way we run ts tests

[Traf333]

Context

This PR tends to simplify running integration tests with one pnpm test command
ref: #2431 (comment)

How (Optional)

with new implementation we just have to know filename or use regexp

// within ./ts-tests/integration-tests
pnpm test your-filename.test.ts

// within ./ts-tests/
pnpm --filter integration-tests run test di_vc.test.ts

In case we want to introduce more integration tests, instead of remembering a package script name we just have to use filename instead

// before
entrypoint: "bash -c '/usr/local/worker-cli/lit_ts_integration_test.sh test-data-provider 2>&1' "

//after
entrypoint: "bash -c '/usr/local/worker-cli/lit_ts_integration_test.sh data-provider.test.ts 2>&1' "

[linear]

P-463 Refactor integration tests script

[Kailai-Wang]

An improvement for me :)

Could you please update the README, if any?

Invited others for review, too

[Traf333]

Could you please update the README, if any?

The tee-worker/ts-tests/README.md was adjusted, or @Kailai-Wang do you mean any other READMEs?