feat: yq supports stamping

[malt3]

Fixes #223

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Type of change

• New feature or functionality (change which adds functionality)

For changes visible to end-users

• Relevant documentation has been updated
• Suggested release notes are provided below:

  Support stamping in yq rules
  

Test plan

• New test cases added

[CLAassistant]

All committers have signed the CLA.

[alexeagle]

Very nice, thank you!!

[alexeagle]

Test failure indicates a missing dep in a bzl_library rule - you can likely just bazel run //:gazelle to fix it.

[malt3]

you can likely just bazel run //:gazelle to fix it.

Running gazelle yields a large number of changes that all seem to be unrelated to my PR.

I'm trying to understand what this means (related to stardoc):

File lib/paths.bzl imported '//lib/private:paths.bzl', yet lib/private/paths.bzl was not found, even at roots

EDIT: I understand now what I need to do to get the docs working. There still seems to be a diff when running gazelle though.

[alexeagle]

Thanks, we just don't have a "gazelle up-to-date" CI check on this repo yet, so HEAD is out-of-date, sorry you tripped on that.