Skip repo check if git isn't in path

lib/git_remote.rb

@@ -2,6 +2,9 @@ require "open3"
 
 class GitRemote
   def self.check_remote_exists(repo_url)
+    # only run check if git is installed and in path
+    return true unless system("git --version")
+
     safe_repo_url = URI.parse(repo_url).to_s.gsub(" ", "").gsub("'", "")
     Open3.capture2e("git", "ls-remote", safe_repo_url).last.success?
   end