Remove Golang 1.20 from CI Testing
This merge request remove Golang 1.20 tool chain from CI testing as we remove support for this version of go(https://lists.torproject.org/pipermail/tor-project/2023-September/003688.html).
This merge request remove Golang 1.20 tool chain from CI testing as we remove support for this version of go(https://lists.torproject.org/pipermail/tor-project/2023-September/003688.html).