Update nightly build gpg key and sign-nightly configuration
We should create a new gpg key on
tb-build-01 to sign the nightly builds.
When we are ready to switch to the new nightly build machine, we should add the new key to
tor-browser-build/keyring/torbrowser-nightly.gpg and update
tor-browser-build/tools/signing/nightly/config.yml to fetch builds from the new URL.