Update dependencies (bitmask-core, x/sys, zerolog, testify) and fix code

0xacab.org/leap/bitmask-core v0.0.0-20240529192952-8ea2f4de269e => 0xacab.org/leap/bitmask-core v0.0.0-20240705122443-e372171b7c36
golang.org/x/sys v0.17.0 => v0.22.0
github.com/rs/zerolog v1.32.0 => v1.33.0
github.com/stretchr/testify v1.8.4 => v1.9.0

There are updates for kcp-go and 0xacab.org/leap/obfsvpn but I didn't update these.