Add build target "web" #12887

Job	Run time
Code style check / Code style check	7s
IWYU / IWYU	3m 3s
MSVC / MSVC (SDL2 x86)	3m 56s
CodeChecker / CodeChecker	33m 0s
MSVC / MSVC (SDL2 x64)	4m 0s
SonarCloud Analyzer / SonarCloud Analyzer	0s
Android / Android	9m 46s
Make / Make (PS Vita)	9m 20s
Make / Make (Nintendo Switch)	3m 10s
CMake / CMake (Linux SDL2)	3m 16s
CMake / CMake (macOS SDL2)	1m 33s
CMake / CMake (Windows SDL2)	4m 16s
Make / Make (Emscripten)	3m 57s
CMake / CMake (macOS SDL2 App Bundle)	1m 40s
Make / Make (Linux x86-64 SDL2 Release)	2m 50s
Make / Make (Linux x86-64 SDL2 Debug)	4m 9s
Make / Make (Linux ARM64 SDL2 Release)	4m 4s
Make / Make (Linux ARM64 SDL2 Debug)	4m 36s
Make / Make (macOS SDL2)	2m 49s
Make / Make (macOS SDL2 App Bundle)	1m 38s
	1h 41m 10s

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