adds libaom

Dockerfile

@@ -14,7 +14,7 @@ RUN DEBIAN_FRONTEND=noninteractive \
   gobject-introspection gtk-doc-tools libglib2.0-dev libjpeg62-turbo-dev libpng-dev \
   libwebp-dev libtiff5-dev libgif-dev libexif-dev libxml2-dev libpoppler-glib-dev \
   swig libmagickwand-dev libpango1.0-dev libmatio-dev libopenslide-dev libcfitsio-dev \
-  libgsf-1-dev fftw3-dev liborc-0.4-dev librsvg2-dev libimagequant-dev && \
+  libgsf-1-dev fftw3-dev liborc-0.4-dev librsvg2-dev libimagequant-dev libaom-dev && \
   cd /tmp && \
   curl -fsSLO https://github.com/strukturag/libheif/releases/download/v${LIBHEIF_VERSION}/libheif-${LIBHEIF_VERSION}.tar.gz && \
   tar zvxf libheif-${LIBHEIF_VERSION}.tar.gz && \