ci: add depndabot.yaml to update github-actions

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3...v4)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Bumps [peaceiris/actions-gh-pages](https://github.com/peaceiris/actions-gh-pages) from 3 to 4.
- [Release notes](https://github.com/peaceiris/actions-gh-pages/releases)
- [Changelog](https://github.com/peaceiris/actions-gh-pages/blob/main/CHANGELOG.md)
- [Commits](peaceiris/actions-gh-pages@v3...v4)

---
updated-dependencies:
- dependency-name: peaceiris/actions-gh-pages
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Bumps [technote-space/toc-generator](https://github.com/technote-space/toc-generator) from 2.4.0 to 4.3.1.
- [Release notes](https://github.com/technote-space/toc-generator/releases)
- [Changelog](https://github.com/technote-space/toc-generator/blob/main/.releasegarc)
- [Commits](technote-space/toc-generator@v2.4.0...v4.3.1)

---
updated-dependencies:
- dependency-name: technote-space/toc-generator
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 2 to 4.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v2...v4)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

…/upload-artifact-4

Bump actions/upload-artifact from 2 to 4

…e-space/toc-generator-4.3.1

Bump technote-space/toc-generator from 2.4.0 to 4.3.1

…is/actions-gh-pages-4

Bump peaceiris/actions-gh-pages from 3 to 4

…/checkout-4

Bump actions/checkout from 3 to 4

ci: change upload-artifact & download-artifact to Cysharp/Actions

Adopt to .NET 8

…gicLooper

LogicLooper.Current also returns an instance when running in ManualLogicLooper