panic: Post "https://sandbox-rest.ably.io/apps": proxyconnect tcp: tls: first record does not look like a TLS handshake /opt/hostedtoolcache/go/1.22.5/x64/src/testing/testing.go:1631 +0x3f7 /opt/hostedtoolcache/go/1.22.5/x64/src/testing/testing.go:1634 +0x6b6 /opt/hostedtoolcache/go/1.22.5/x64/src/runtime/panic.go:770 +0x132 /home/runner/work/ably-go/ably-go/ablytest/sandbox.go:129 +0x67 /home/runner/work/ably-go/ably-go/ablytest/sandbox.go:118 +0x46 /home/runner/work/ably-go/ably-go/ably/auth_integration_test.go:41 +0x31c /opt/hostedtoolcache/go/1.22.5/x64/src/testing/testing.go:1689 +0x21f /opt/hostedtoolcache/go/1.22.5/x64/src/testing/testing.go:1742 +0x826