feat: add publish scripts

[gebhardtr]

Description

Automates publishing of all OCI MCP servers to PyPI's test and prod registries.

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Tested during the last publish via:

UV_PUBLISH_TOKEN=$(fetch test token from vault) make test-publish

and

UV_PUBLISH_TOKEN=$(fetch prod token from vault) make publish

Test Configuration:

• Firmware version:
• Hardware:
• Toolchain:
• SDK:

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[gebhardtr]

this will stop all publishing if there's a failure.

[banderson-oracle]

This looks reasonable, though the PR description is totally boilerplate here doesn't include anything to test/verify (if it's needed). Can you update the description?