ghostunnel 1.8.0

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Created by brew bump

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Created with brew bump-formula-pr.

release notes

**New Features**
* Add support for systemd watchdog timer (@csstaub in https://github.com/ghostunnel/ghostunnel/pull/427). Ghostunnel can now be watched by systemd using the `WatchdogSec` option. If Ghostunnel fails to respond, systemd will automatically relaunch it. See [docs/WATCHDOG.md](https://github.com/ghostunnel/ghostunnel/blob/master/docs/WATCHDOG.md) for an example service file.
* Implement landlock support to limit process privileges on Linux (@csstaub in https://github.com/ghostunnel/ghostunnel/pull/431). If started with the `--use-landlock` flag, Ghostunnel will call upon [landlock](https://docs.kernel.org/userspace-api/landlock.html) on Linux to limit access to files and sockets. This is an experimental feature, please give it a try and let us know if you run into any issues.
Bug Fixes

Avoid use of deprecated SecTrustGetCertificateAtIndex (@csstaub in Avoid use of deprecated SecTrustGetCertificateAtIndex ghostunnel/ghostunnel#426)
Fix nil ptr deref on Windows/Linux when keychain flags are used (@csstaub in Fix nil ptr deref on Windows/Linux when keychain flags are used ghostunnel/ghostunnel#448)
Close files properly and remove refs to deprecated io/ioutil (@testwill in fix: close files ghostunnel/ghostunnel#453 and chore: remove refs to deprecated io/ioutil ghostunnel/ghostunnel#454)
Fix RSA-PSS for Windows platform keys (@csstaub in Windows implementation supports RSA-PSS ghostunnel/ghostunnel#459 and Fix Windows unit test error relating to RSA-PSS on CAPI keys ghostunnel/ghostunnel#469)

Other Changes

Upgrade to Go 1.22 (@csstaub in Upgrade to Go 1.22 ghostunnel/ghostunnel#419)
Upgrade go-jose to v4.0.1 (@mcpherrinm in Upgrade go-jose to v4.0.1 ghostunnel/ghostunnel#423)
Upgrade go-spiffe (@mcpherrinm in Upgrade go-spiffe ghostunnel/ghostunnel#429)
Various other dependency updates via @dependabot

Full Changelog: ghostunnel/ghostunnel@v1.7.3...v1.8.0

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