feat: set username and email

Signed-off-by: kjuulh <contact@kjuulh.io>

crates/cuddle-please-misc/src/git_client.rs

@@ -52,9 +52,19 @@ impl VcsClient {
     fn exec_git(&self, args: &[&str]) -> anyhow::Result<()> {
         match self {
             VcsClient::Noop {} => {}
-            VcsClient::Git { source, .. } => {
+            VcsClient::Git {
+                source,
+                username,
+                email,
+            } => {
                 let checkout_branch = std::process::Command::new("git")
                     .current_dir(source.as_path())
+                    .args(&[
+                        "-c",
+                        &format!("user.name={}", username),
+                        "-c",
+                        &format!("user.email={}", email),
+                    ])
                     .args(args)
                     .output()?;