Move GCP presubmits to Github actions. This allows us to run WebGL / WebGPU tests, since Github Actions have a MacOS runner with a GPU. This should unblock several PRs.

Co-authored-by: Matthew Soulanille <msoulanille@google.com>

… supported python version. (#8551)

* Remove --no-site-packages flag from virtualenv.

* change python version to least supported version.

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Co-authored-by: Matthew Soulanille <msoulanille@google.com>

Fixes a bug with closure compiler property renaming.

Co-authored-by: Ping Yu <4018+pyu10055@users.noreply.github.com>

`tf.io.browserFiles` doesn't fail when loading invalid files. or rather, it fails, but never rejects the promise, making the `IOHandler.load` hang forever.

wrapping the `JSON.parse` call in a try/catch and rejecting accordingly did the trick. and a small test to try it out.

note: `FileReader.readAsText()` is a callback way to go around reading files. the promise-based `Blob.text()` would make `BrowserFile.load` simpler and safer (but felt ouf-of-scope here).

…ons (#8555)

[Example nightly release and publish test](https://github.com/mattsoulanille/tfjs/actions/runs/14672995746/job/41183624273)

[Example release PR test](https://github.com/mattsoulanille/tfjs/actions/runs/14674243426/job/41187438555?pr=1)

* Add NAPI-v9 support to tfjs-node-gpu package

* Update napi version to 9 for tfjs-node