fix: fix ci with cert issue

[dhmlau]

CI suddenly fails with:

 1) HttpCachingProxy
       proxies HTTPs requests (no tunneling):
     Error: 502 - "Error: unable to get local issuer certificate"
      at makeRequest (packages/http-caching-proxy/src/__tests__/integration/http-caching-proxy.integration.ts:261:19)
      at processTicksAndRejections (node:internal/process/task_queues:103:5)
      at Context.<anonymous> (packages/http-caching-proxy/src/__tests__/integration/http-caching-proxy.integration.ts:88:20)

Checklist

• DCO (Developer Certificate of Origin) signed in all commits
• npm test passes on your machine
• New tests added or existing tests modified to cover all changes
• Code conforms with the style guide
• API Documentation in code was updated
• Documentation in /docs/site was updated
• Affected artifact templates in packages/cli were updated
• Affected example projects in examples/* were updated

👉 Check out how to submit a PR 👈

In general, the problem is that TLS certificate validation is disabled by setting rejectUnauthorized: false in the custom https.Agent used by Axios. The fix is to avoid disabling validation: either use the default https.Agent (no custom httpsAgent configuration at all), or explicitly set rejectUnauthorized: true. If special handling of self‑signed certificates is needed, it should be done via trusted CA configuration instead, not by turning validation off.

The minimal, non‑breaking change here is to stop passing rejectUnauthorized: false when constructing the agent. Since Node’s default HTTPS agent already enforces certificate validation, the cleanest approach is to remove the custom httpsAgent entirely and let Axios use its default. That preserves all existing behavior except for making TLS secure again. Concretely, in packages/http-caching-proxy/src/http-caching-proxy.ts, within the HttpCachingProxy constructor, we should delete the httpsAgent property (lines 92–96 in the snippet) and the associated comment about disabling SSL validation. No new imports are needed, because we will no longer use require('node:https') here. Axios will automatically use Node’s standard HTTPS handling, which validates certificates.