openbao: fix version reporting and simplify build

[pat-s]

• Fix bao --version reporting incorrect version (2.0.0-HEAD instead of actual version)
• Remove UI build (node, yarn dependencies) to match official OpenBao releases
• Add ldflags to inject version info during Go build

Problem

The current formula runs make dev-ui which:

1. Doesn't pass ldflags to set version variables, causing bao --version to show 2.0.0-HEAD
2. Attempts to build the Ember UI which has known build failures and is not included in official OpenBao binaries

Details

Before:

bao --version
OpenBao v2.0.0-HEAD ('4bfd70723d4f9b82be00e87b8c018ac661dd9b99'), built 2025-11-24T14:37:04Z

2025-11-24 is the release date of v2.4.4.

After the patch:

go build -ldflags=-s -w -X github.com/openbao/openbao/version.fullVersion=2.4.4 -X github.com/openbao/openbao/version.GitCommit=4bfd70723d4f9b82be00e87b8c018ac66
==> Caveats
To start pjs/local/openbao now and restart at login:
  brew services start pjs/local/openbao
Or, if you don't want/need a background service you can just run:
  /opt/homebrew/opt/openbao/bin/bao server -dev
==> Summary
🍺  /opt/homebrew/Cellar/openbao/2.4.4: 9 files, 118.4MB, built in 1 minute 20 seconds
==> Running `brew cleanup openbao`...

❯ bao --version
OpenBao v2.4.4 (4bfd70723d4f9b82be00e87b8c018ac661dd9b99), built 2025-11-24T19:37:04Z (cgo)

Note: Current binaries still reference the wrong version as they were built without the required LDFLAGS.

See also openbao/openbao#401

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---

[github-actions]

Caution

Please do not modify the bottle block. Bottle block modifications can cause CI to misbehave.
@BrewTestBot will handle updating the bottle block before this PR is merged.

[github-actions]

Caution

Please do not modify the bottle block. Bottle block modifications can cause CI to misbehave.
@BrewTestBot will handle updating the bottle block before this PR is merged.

[github-actions]

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[daeho-ro]

It seems that you are removing ui part, is it fine?

[pat-s]

It did that on purpose, yes.
AFAICS the formula is broken for source builds in its current state. At least it errors on my side (Sequoia) when building from source.
On macOS, in 99.x% only the CLI is desired. Openbao server is hosted and run on Linux, not on macOS.

That being said, I am no maintainer or contributor to Openbao in any way, just a normal user.
I'd mainly be happy to have a proper version output in the binaries. I don't care much about the UI for this formula but I also don't want to debug this part.

But yes, if the bottles contain the UI and the source build doesn't this should likely at least be noted during formula installation.