system-reinstall-bootc: fix formatting and restore indicatif in Cargo.lock

Fix missing newline at EOF in podman.rs flagged by cargo fmt.

Also restore the indicatif 0.18.3 entry in Cargo.lock which was
accidentally dropped when reverting unrelated Cargo.lock changes;
indicatif is a real dependency of system-reinstall-bootc.

Assisted-by: Claude Code (claude-sonnet-4-6)
Signed-off-by: Juan Gomez <1766933+judavi@users.noreply.github.com>

Author: judavi

Cargo.lock

@@ -176,4 +176,4 @@ pub(crate) fn ensure_podman_installed() -> Result<()> {
     );
 
     Ok(())
-}
+}