Fixes caddyserver#170

- Update `dial_timeout` example to use duration unit (30s)
- Change parameter type from [integer] to [Duration] to match Go type
- Update description to clarify duration unit requirement

This change makes the documentation more accurate and consistent
with Go's time.Duration type usage.

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 5.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4...v5)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [github.com/golang/glog](https://github.com/golang/glog) from 1.2.0 to 1.2.4.
- [Release notes](https://github.com/golang/glog/releases)
- [Commits](golang/glog@v1.2.0...v1.2.4)

---
updated-dependencies:
- dependency-name: github.com/golang/glog
  dependency-version: 1.2.4
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [actions/setup-go](https://github.com/actions/setup-go) from 5 to 6.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](actions/setup-go@v5...v6)

---
updated-dependencies:
- dependency-name: actions/setup-go
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [github.com/quic-go/quic-go](https://github.com/quic-go/quic-go) from 0.44.0 to 0.49.1.
- [Release notes](https://github.com/quic-go/quic-go/releases)
- [Commits](quic-go/quic-go@v0.44.0...v0.49.1)

---
updated-dependencies:
- dependency-name: github.com/quic-go/quic-go
  dependency-version: 0.49.1
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Allow insecure upstream