build: Use python 3.6 annotation syntax for Build initializer
build: Use python 3.6 annotation syntax for Build initializer

QuLogic/meson,QuLogic/meson,QuLogic/meson,pexip/meson,jpakkane/meson,QuLogic/meson,QuLogic/meson,QuLogic/meson,mesonbuild/meson,mesonbuild/meson,mesonbuild/meson,mesonbuild/meson,jpakkane/meson,jpakkane/meson,mesonbuild/meson,jpakkane/meson,pexip/meson,pexip/meson,mesonbuild/meson,jpakkane/meson,pexip/meson,mesonbuild/meson,pexip/meson,pexip/meson,mesonbuild/meson,mesonbuild/meson,pexip/meson,pexip/meson,pexip/meson,mesonbuild/meson,QuLogic/meson,jpakkane/meson,pexip/meson,jpakkane/meson,jpakkane/meson,jpakkane/meson,QuLogic/meson,QuLogic/meson