bin/ci: crnm: Improve timer display formatting

Modify the pretty_wait function to use a two-digit width for seconds
display, ensuring consistent and aligned output when showing the
countdown timer.

Signed-off-by: Guilherme Gallo <guilherme.gallo@collabora.com>
Reviewed-by: Sergi Blanch Torne <sergi.blanch.torne@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33750>

bin/ci/ci_run_n_monitor.py

@@ -107,7 +107,7 @@ def job_duration(job: gitlab.v4.objects.ProjectPipelineJob) -> float:
 def pretty_wait(sec: int) -> None:
     """shows progressbar in dots"""
     for val in range(sec, 0, -1):
-        print(f"⏲  {val} seconds", end="\r")  # U+23F2 Timer clock
+        print(f"⏲  {val:2d} seconds", end="\r")  # U+23F2 Timer clock
         time.sleep(1)