Add a matrix label to FTL test runs, to make sorting them easier. #9570

Job	Run time
check_and_prepare	15s
build-ios-macos-12	1h 41m 54s
build-tvos-macos-12	1h 21m 47s
build-android-ubuntu-20.04	1h 16m 8s
build-desktop-ubuntu-20.04-x64-openssl	54m 50s
build-android-macos-12	1h 45m 0s
build-desktop-macos-12-x64-openssl	1h 45m 47s
build-android-windows-latest	1h 45m 49s
build-desktop-windows-latest-x64-openssl	2h 14m 40s
test-tvos-macos-12-tvos_simulator	17m 53s
test-ios-macos-12-ios_target-gameloop	17m 35s
test-ios-macos-12-simulator_target-gameloop	41m 51s
test-android-ubuntu-20.04-android_target-gameloop	24m 4s
test-android-ubuntu-20.04-emulator_ftl_target-gameloop	11m 15s
test-android-macos-12-android_target-gameloop	25m 17s
test-android-macos-12-emulator_ftl_target-gameloop	12m 18s
test-android-windows-latest-android_target-gameloop	33m 51s
test-android-windows-latest-emulator_ftl_target-gameloop	15m 12s
test-desktop-ubuntu-20.04-x64-openssl	3m 9s
test-desktop-${{ matrix.os }}-${{ matrix.arch }}-${{ matrix.ssl_variant }}-custom-runner	0s
test-desktop-macos-12-x64-openssl	6m 33s
test-desktop-windows-latest-x64-openssl	15m 5s
summarize-results	24s
	16h 30m 37s

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