chore(deps): update aquaproj/aqua-installer action to v4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
aquaproj/aqua-installer	action	major	v3.1.2 -> v4.0.0

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Release Notes

aquaproj/aqua-installer (aquaproj/aqua-installer)

v4.0.0

Compare Source

SHA256 Checksum

f7fa69dacb234ce9648f3008cef9120a1e59d96c37971e747668c0fada7bec68  aqua-installer

⚠️ Breaking Changes

#​822 If you pass a GitHub Access token via environment variable env, it would be overridden by the input github_token.

uses: aquaproj/aqua-installer@v2.0.0
env:
  GITHUB_TOKEN: ${{secrets.PAT}} # This is overridden by ${{github.token}}

How to migrate

Pass a GitHub access token by the input github_token.

uses: aquaproj/aqua-installer@v2.0.0
with:
  github_token: ${{secrets.PAT}}

Why is this breaking change required?

Recently, GitHub updated rate limits for unauthenticated requests.

https://github.blog/changelog/2025-05-08-updated-rate-limits-for-unauthenticated-requests/

As a result, aqua-installer often hits the API rate limit if a GitHub access token isn't passed via environment variable.

e.g. https://github.com/szksh-lab/.github/actions/runs/15082243052/job/42400373723

time="2025-05-17T05:48:24Z" level=error msg="install the registry" aqua_version=2.51.2 env=linux/amd64 error="get a file by Get GitHub Content API: status code 429" program=aqua registry_name=standard
time="2025-05-17T05:48:24Z" level=fatal msg="aqua failed" aqua_version=2.51.2 env=linux/amd64 error="it failed to install some registries" program=aqua

It failed to download the standard registry by GitHub content API.

To resolve the issue, we pass a GitHub actions token by default.
And we add the input github_token to allow you to change the access token.

Features

#​822 The input github_token is added.
You can pass a GitHub access token by input.
By default, GitHub Actions token ${{github.token}} is passed.

Others

#​823 chore: update the bootstrap version to v2.51.2

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