Output a warning on mulitple paths being tested in the same file.

[dblock]

Description

Adds support for story warnings, outputs a warning when multiple paths are being tested.

$ npm run test:spec--insecure -- --tests tests/indices/

> opensearch_api_tools@1.0.0 test:spec--insecure
> ts-node tools/src/tester/test.ts --opensearch-insecure --tests tests/indices/

OpenSearch 2.15.0

PASSED  cache.yaml (/Users/dblock/source/opensearch-project/opensearch-api-specification/dblock-opensearch-api-specification/tests/indices/cache.yaml)
PASSED  clone.yaml (/Users/dblock/source/opensearch-project/opensearch-api-specification/dblock-opensearch-api-specification/tests/indices/clone.yaml)
WARNING Multiple paths detected, please group similar tests together and move paths not being tested to the prologue.
  /{index}/_settings
  /{index}/_clone/{target}

This lets us catch the instances where we maybe be testing multiple/unrelated paths or where some should be in prologue. It helps make tests more contained, and warnings can be suppressed when absolutely necessary.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[github-actions]

Spec Test Coverage Analysis

Total	Tested
524	116 (22.14 %)

[github-actions]

Changes Analysis

Commit SHA: df9e41a
Comparing To SHA: 659a3ce

API Changes

Summary

NO CHANGES

Report

The full API changes report is available at: https://github.com/opensearch-project/opensearch-api-specification/actions/runs/10205196222/artifacts/1766570560

API Coverage

	Before	After	Δ
Covered (%)	500 (48.97 %)	500 (48.97 %)	0 (0 %)
Uncovered (%)	521 (51.03 %)	521 (51.03 %)	0 (0 %)
Unknown	24	24	0

[dblock]

@nhtruong rebased