Move spector related libraries into preview version

We have been moved to use spector tests to measure the emitter quality since the beginning of this year.
Now the test results are shown in the main page of typespec site: https://[azure.github.io/typespec-azure/can-i-use/http/](https://azure.github.io/typespec-azure/can-i-use/http/)

The issue is about the below libraries:

https://www.npmjs.com/package/@typespec/spector
https://www.npmjs.com/package/@typespec/http-specs

Tasks:

1. Update both package references to 0.1.0 in the project. Please note, this is also a preview version.
2. Ensure the entire project builds successfully after the upgrade.
3. Run `chronus add` to add a changeset
4. No need to update README as they are auto generated.
5. Create the working branch under publish, e.g. `publish/fix-issue-8260`

Acceptance Criteria:

- Both packages use version 0.1.0 .
- You should fix all CI errors.