CI: Sonar analysis should exclude stb_sprintf.h (#3609)
CI: Sonar analysis should exclude stb_sprintf.h (#3609)

It's not really "our code", and we use very little of that file, so
it's not helpful to include it in coverage or other analysis.
OpenImageIO/oiio,lgritz/oiio,lgritz/oiio,lgritz/oiio,lgritz/oiio,OpenImageIO/oiio,OpenImageIO/oiio,OpenImageIO/oiio