fix Simulcast IncreaseLayer bug when producer score is zero #4664

Job	Run time
ci (ubuntu-20.04, gcc, g++, 20, Release)	7m 55s
ci (ubuntu-20.04, gcc, g++, 20, Debug)	7m 18s
ci (ubuntu-20.04, clang, clang++, 20, Release)	7m 53s
ci (ubuntu-20.04, clang, clang++, 20, Debug)	6m 54s
ci (ubuntu-22.04, gcc, g++, 20, Release)	7m 32s
ci (ubuntu-22.04, gcc, g++, 20, Debug)	6m 47s
ci (ubuntu-22.04, clang, clang++, 20, Release)	8m 47s
ci (ubuntu-22.04, clang, clang++, 20, Debug)	7m 56s
ci (macos-12, gcc, g++, 20, Release)	8m 8s
ci (macos-12, gcc, g++, 20, Debug)	6m 45s
ci (macos-14, clang, clang++, 20, Release)	6m 25s
ci (macos-14, clang, clang++, 20, Debug)	3m 44s
ci (windows-2022, cl, cl, 20, Release)	7m 20s
ci (windows-2022, cl, cl, 20, Debug)	5m 54s
	1h 39m 18s

Provide feedback