[sphinx] Fixed warnings

4 jobs for arface in 51 minutes and 31 seconds
Status Job ID Name Coverage
  Build
passed #241984
docker
build_linux_37

00:51:31

64.0%
passed #241985
docker
build_linux_38

00:48:49

65.0%
passed #241982
intel macos
build_macos_intel_37

00:21:25

57.0%
passed #241983
intel macos
build_macos_intel_38

00:18:25

58.0%