npx @action-validator/cli is really slow compared to calling the binary directly

[deviantintegral]

I noticed that the validator action is pretty slow. Here's examples from a repository with 34 files:

$ time (find . -name '*yml' | xargs -n1 npx @action-validator/cli)

real	2m17.317s
user	1m11.874s
sys	0m13.308s

Calling the script directly (which is rust, so relatively fast!):

$ time (find . -name '*yml' | xargs -n1 /mnt/ddev-global-cache/npm/_npx/7a1a696535fd56d2/node_modules/.bin/action-validator)

real	0m3.905s
user	0m6.540s
sys	0m1.423s

So, 2m14s of overhead just in spinning up nodejs and calling the script!

Since this is available as a single binary, I think we should download the binary directly, likely how we will do soon with task and local-security-checker.

[deviantintegral]

Here's the Dockerfile lines I used to bring this into a project.

# Install action-validator for GitHub actions linting.
RUN /bin/bash -c '([[ $(arch) == "aarch64" ]] && curl -Lo /usr/local/bin/action-validator https://github.com/mpalmer/action-validator/releases/download/v0.5.2/action-validator_linux_arm64) || true'
RUN /bin/bash -c '([[ $(arch) == "x86_64" ]] && curl -Lo /usr/local/bin/action-validator https://github.com/mpalmer/action-validator/releases/download/v0.5.2/action-validator_linux_amd64) || true'
RUN chmod +x /usr/local/bin/action-validator

[deviantintegral]

I've marked this as high priority since we're talking about a 35x slowdown for real-world projects.