community/vips: add secfixes

community/vips/APKBUILD

@@ -38,6 +38,12 @@ case "$CARCH" in
 	*) makedepends="$makedepends librsvg-dev" ;;
 esac
 
+# secfixes:
+#   8.9.0-r0:
+#     - CVE-2020-20739
+#   8.8.2-r0:
+#     - CVE-2019-17534
+
 build() {
 	./configure \
 		--build=$CBUILD \