core/ci: store ui bundles in lfs

[calebdoxsey]

Summary

Store index.js and index.css using LFS.

Related issues

For https://github.com/pomerium/internal/issues/1788

Checklist

• [x] reference any related issues
• [ ] updated docs
• [ ] updated unit tests
• [ ] updated UPGRADING.md
• [x] add appropriate tag (improvement / bug / etc)
• [x] ready for review

[coveralls]

coverage: 56.466% (+0.01%) from 56.453% when pulling 3a1fb34a930e3763fbc9db33ab54c3240e244414 on cdoxsey/lfs into d225288ab3b9224861a7a750aab03e52468017d5 on main.

[wasaga]

do we need rebuild index.css/js ?

➜  pomerium-3 git:(cdoxsey/lfs) make build 
==> yarn
cd ui ; yarn install --network-timeout 120000
yarn install v1.22.19
[1/4] 🔍  Resolving packages...
success Already up-to-date.
✨  Done in 0.12s.
==> build-ui
yarn run v1.22.19
$ ts-node ./scripts/esbuild.ts

  dist/index.js     3.7mb ⚠️
  dist/index.css  125.4kb

✨  Done in 1.61s.
==> get-envoy
==> deps-build
==> deps-release
==> build-deps
==> build-go
==> build
➜  pomerium-3 git:(cdoxsey/lfs) ✗ git status
On branch cdoxsey/lfs
Your branch is up to date with 'origin/cdoxsey/lfs'.

Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git restore <file>..." to discard changes in working directory)
        modified:   ui/dist/index.css
        modified:   ui/dist/index.js

[calebdoxsey]

I did. Maybe it's not deterministic. In which case the pre-commit hook I added isn't going to work.

[calebdoxsey]

Pulled it down on mac and re-ran the build... it gave me the same files. I guess we can't rely on this build process. We will each end up committing a different build.

[calebdoxsey]

Not doing this for now.