ci/lava: Color red for fatal and yellow for warning

Fatal errors now have red foreground color and retry messages yellow
one.

Signed-off-by: Guilherme Gallo <guilherme.gallo@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17389>

.gitlab-ci/lava/utils/log_follower.py

@@ -207,7 +207,10 @@ def print_log(msg):
 
 
 def fatal_err(msg):
-    print_log(msg)
+    colored_msg = f"{CONSOLE_LOG['FG_RED']}"
+    f"{msg}"
+    f"{CONSOLE_LOG['RESET']}"
+    print_log(colored_msg)
     sys.exit(1)