[t/spec] Add .gitignore set to ignore *.rakudo.
[t/spec] Add .gitignore set to ignore *.rakudo.

bitrauser/roast,dogbert17/roast,cygx/roast,laben/roast,dankogai/roast,zostay/roast,b2gills/roast,laben/roast,cygx/roast,skids/roast,perl6/roast,skids/roast,laben/roast,cygx/roast,zostay/roast,bitrauser/roast,niner/roast,niner/roast,b2gills/roast,dankogai/roast,niner/roast,dankogai/roast,b2gills/roast,zostay/roast,dogbert17/roast,skids/roast