Replace apt-get with aptitude #1137

Job	Run time
Tests (clang++, test-native-regular)	21m 50s
Web Tests	6m 40s
Tests (clang++, test-native-fulldebug)	21m 51s
Enforce Tidyness	1m 27s
Tests (clang++, test-native-opt)	21m 50s
Test Tidy Enforcement on macOS	6m 17s
Tests (clang++, test-examples)	9m 23s
Build Docker Image	2m 18s
Tests (clang++, test-demos)	2m 42s
Tests (g++, test-native-regular)	19m 4s
Measure Test Coverage	21m 53s
Tests (g++, test-native-fulldebug)	19m 33s
Tests (g++, test-native-opt)	20m 18s
Tests (g++, test-examples)	8m 54s
Tests (g++, test-demos)	2m 44s
Test Documentation Build	0s
Deploy Documentation Coverage	0s
Deploy to DockerHub and ghcr.io	1s
	3h 6m 45s

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