Make run_tests.py executable #3363

Job	Run time
lint / python-lint	7s
lint / shell-lint	13s
lint / clang-format	11s
ubuntu / clang-build (ubuntu-24.04-arm)	1m 54s
ubuntu / gcc-build (ubuntu-24.04, Debug)	1m 32s
ubuntu / clang-build (ubuntu-24.04)	1m 20s
ubuntu / gcc-build (ubuntu-24.04-arm, Release)	1m 40s
mac / clang-build (Debug)	1m 48s
ubuntu / gcc-build (ubuntu-24.04-arm, Debug)	4m 22s
windows / msvc-build (Release)	7m 0s
windows / msvc-build (Debug)	5m 29s
ubuntu / gcc-build (ubuntu-24.04, Release)	2m 14s
windows / clang-build	2m 3s
mac / clang-build (Release)	1m 58s
windows / clang-test	1m 2s
mac / clang-test	1m 34s
windows / msvc-test	1m 53s
windows / clang-test-extended	0s
mac / clang-test-extended	0s
ubuntu / clang-test (ubuntu-24.04-arm)	9m 56s
ubuntu / clang-sanitizer-build (ubuntu-24.04)	1s
ubuntu / clang-test (ubuntu-24.04)	1s
ubuntu / gcc-test (ubuntu-24.04-arm)	1s
ubuntu / gcc-test (ubuntu-24.04)	1s
windows / msvc-test-extended	0s
ubuntu / gcc-test-extended	1s
ubuntu / clang-sanitizer-test	1s
ubuntu / clang-test-extended	1s
ubuntu / gcc-build-codecov	1s
ubuntu / clang-sanitizer-test-extended	1s
perf	0s
pages	0s
	46m 25s

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