add brotli and dav-ext, remove lua

Dockerfile.aarch64

@@ -27,13 +27,13 @@ RUN \
 	gnupg \
 	memcached \
 	nginx \
+	nginx-mod-http-brotli \
+	nginx-mod-http-dav-ext \
 	nginx-mod-http-echo \
 	nginx-mod-http-fancyindex \
 	nginx-mod-http-geoip2 \
 	nginx-mod-http-headers-more \
 	nginx-mod-http-image-filter \
-	nginx-mod-http-lua \
-	nginx-mod-http-lua-upstream \
 	nginx-mod-http-nchan \
 	nginx-mod-http-perl \
 	nginx-mod-http-redis2 \