Add a 'metadata' field to the proto definition for a usage update

[ianmcorvidae]

QMS itself doesn't use these protos I don't think (at least not from what I could see) but stuff calling into it will, like resource-usage-api. This should, hopefully, be the right change to match with cyverse/qms#67

[slr71]

The field itself looks good. I think that code needs to be generated before the changes can be checked in. You can find some instructions for doing that in the README.

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	golang/​github.com/​cyverse-de/​p@​v0.0.0-20250418234247-219994b829fb ⏵ v0.0.0-20250419020147-88501eaa978e					-50

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[ianmcorvidae]

Ah, yes, sorry. I did my best at that -- I ended up with a newer java protobuf version in the process, as well as a newer protoc, so hopefully that's fine. If needed I can probably downgrade or someone else can regenerate the relevant code, but hopefully it's not a big deal, anyway.

[slr71]

Ah, that makes sense. Sounds good. I can see if I can regenerate the code and see what happens. 🤞

[slr71]

Ah, I commented before I realized that you generated the code. I think we can merge it and deal with any fallout that occurs when we update downstream repos. 👍

[slr71]

LGTM!

[ianmcorvidae]

Alright, let's see what I break 🔨

Thanks for the review!