[#55543] CI: Add timeout to executed scripts

With the timeout on single test execution the CI jobs will fail faster
(instead of failing when the job is killed due to the job time limit).

Signed-off-by: Franciszek Zdobylak <fzdobylak@antmicro.com>

.ci.yml

@@ -12,7 +12,7 @@ variables:
     pip install .
 
 .run-tests: &run_tests |
-  for i in examples/*; do echo "Running test $i..."; python3 $i; done
+  for i in examples/*; do echo "Running test $i..."; timeout 240 python3 $i; done
 
 test-mono-pkg:
   stage: build