CI: Adjust how `godot-cpp` is tested #1513

Job	Run time
📊 Static checks / Code style, file formatting, and docs	27s
🍏 iOS / Template (target=template_release)	1m 17s
🤖 Android / Editor (target=editor)	1m 13s
🌐 Web / Template w/ threads (target=template_release, threads=yes)	6m 0s
🐧 Linux / Editor w/ Mono (target=editor)	2m 50s
🤖 Android / Template arm32 (target=template_release, arch=arm32)	1m 12s
🌐 Web / Template w/o threads (target=template_release, threads=no)	7m 15s
🐧 Linux / Editor with doubles and GCC sanitizers (target=editor, tests=yes, dev_build=yes, scu_build=yes, precision=double, use_asan=yes, use_ubsan=yes, linker=gold)	6m 22s
🤖 Android / Template arm64 (target=template_release, arch=arm64)	1m 11s
🏁 Windows / Editor (target=editor, tests=yes)	8m 3s
🐧 Linux / Editor with clang sanitizers (target=editor, tests=yes, dev_build=yes, use_asan=yes, use_ubsan=yes, use_llvm=yes, linker=lld)	3m 34s
🏁 Windows / Editor w/ clang-cl (target=editor, tests=yes, use_llvm=yes)	8m 3s
🐧 Linux / Editor with ThreadSanitizer (target=editor, tests=yes, dev_build=yes, use_tsan=yes, use_llvm=yes, linker=lld)	1m 46s
🍎 macOS / Editor (target=editor, tests=yes)	8m 13s
🏁 Windows / Template (target=template_release, tests=yes)	8m 3s
🐧 Linux / Template w/ Mono (target=template_release, tests=yes)	1m 54s
🍎 macOS / Template (target=template_release, tests=yes)	8m 10s
🐧 Linux / Minimal template (target=template_release, tests=yes, everything disabled)	2m 12s
	1h 17m 45s

Provide feedback