testing/cloudflared: upgrade to 2024.6.1
Upgrade and switch from quic to http2 for tunnels because quic requires the binary to be compiled with a Cloudflare Go compiler fork: https://github.com/cloudflare/cloudflared/issues/1151
Upgrade and switch from quic to http2 for tunnels because quic requires the binary to be compiled with a Cloudflare Go compiler fork: https://github.com/cloudflare/cloudflared/issues/1151