Cmake cleanup and adding jobs argument #192

Job	Run time
test	2m 49s
compat-test-python3-ubuntu (8)	1m 58s
language-verification-c-clang-native-extra	1m 0s
compat-test-python3-ubuntu (9)	2m 6s
compat-test-python3-windows-and-mac (11, macos-latest)	1m 52s
language-verification-c (native32, gcc)	1m 11s
compat-test-python3-ubuntu (10)	2m 11s
compat-test-python3-windows-and-mac (12, macos-latest)	1m 42s
language-verification-c (native, gcc)	1m 1s
compat-test-python3-ubuntu (11)	2m 9s
compat-test-python3-windows-and-mac (13, macos-latest)	1m 32s
language-verification-cpp (native32, gcc, cpp-14)	2m 3s
language-verification-c (native, clang)	1m 9s
compat-test-python3-ubuntu (12)	2m 36s
language-verification-cpp (native32, gcc, cpp-17)	1m 59s
compat-test-python3-ubuntu (13)	2m 17s
language-verification-cpp-clang-native-extra	1m 37s
language-verification-cpp (native32, gcc, cpp-20)	2m 0s
language-verification-python	4m 22s
language-verification-cpp (native, gcc, cpp-14)	1m 59s
sonar	56s
language-verification-cpp (native, gcc, cpp-17)	1m 55s
language-verification-cpp (native, gcc, cpp-20)	1m 56s
language-verification-cpp (native, clang, cpp-14)	1m 47s
language-verification-cpp (native, clang, cpp-17)	1m 49s
language-verification-cpp (native, clang, cpp-20)	1m 52s
	49m 48s

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