Meltano

<https://github.com/meltano/meltano/pull/10040|#10040 docs: Hide Postman collection page for deployments and remove last remaining `discovery.yml` request >
Pull request opened by <https://github.com/ReubenFrankel|ReubenFrankel>
*Description*

SSIA

*Checklist*

• I have read the <https://docs.meltano.com/contribute/merge/|contribution guide>

*Was generative AI tooling used to co-author this PR?*

• Yes (please specify the tool below)

*Related Issues*

• Closes #XXXX
• Ref MEL-401

*Summary by Sourcery*

Update API documentation to reflect current capabilities and mark new Postman collection docs as draft.
Documentation:
• Remove documentation for the deprecated `discovery.yml` dataplugin publication endpoint.
• Mark the Postman collection documentation page for the Meltano Cloud API as a draft.
<https://github.com/meltano/meltano|meltano/meltano>

<https://github.com/meltano/meltano/pull/10040|#10040 docs: Hide Postman collection page for deployments and remove last remaining `discovery.yml` request >
Pull request merged by <https://github.com/ReubenFrankel|ReubenFrankel>
<https://github.com/meltano/meltano|meltano/meltano>