make regex more lenient

[thesuhas]

To contribute to both Databricks Repos and Neon Repos, we often have multiple SSH keys with different upstream remotes. Here is an ssh config for example:

Include /Users/suhas.thalanki/.ssh/arca.ssh
Host github.com-emu
 HostName github.com
 IdentityFile ~/.ssh/github_key
 IdentitiesOnly yes
 User git
 AddKeysToAgent yes
 UseKeychain yes

Host github-neon.com
 HostName github.com
 IdentityFile ~/.ssh/neon_ssh_key
 IdentitiesOnly yes
 User git
 AddKeysToAgent yes
 UseKeychain yes

neon-release-pr does not accept hostnames other than github.com, causing regex to fail. This PR adds the ability to handle hostnames which have been modified.

[Shugenya]

Looks good, just please check the duplicated lines.