Create common github call define and start using it * Makefile.in: add GITHUB_PKG_UPDATE * src/blas_switch.mk, src/double-conversion.mk, src/libffi.mk, src/libgeotiff.mk, src/libmodbus.mk, src/libproxy.mk, src/librsvg.mk, src/libsndfile.mk, src/libsodium.mk, src/libvpx.mk, src/netcdf.mk, src/of-statistics.mk, src/openblas.mk, src/opencv.mk, src/openjpeg.mk, src/openlibm.mk, src/paho-mqtt-c.mk, src/pcre2.mk, src/portaudio.mk, src/rapidjson.mk, src/rtmidi.mk, src/suitesparse.mk, src/sundials-ida.mk, src/wt.mk, src/wxwidgets.mk, src/yasm.mk, src/zeromq.mk : call GITHUB_PKG_UPDATE in update

--- a/Makefile.in	Mon Nov 07 09:51:40 2022 -0500
+++ b/Makefile.in	Tue Nov 08 09:37:16 2022 -0500
@@ -1018,6 +1018,15 @@
                       $(wildcard $(PKG_DIR)/*)))
 
 .PHONY: update
+
+define GITHUB_PKG_UPDATE
+  $(WGET) -q -O- "https://github.com/$(1)/$(2)/tags" | \
+  $(SED) -n 's|.*releases/tag/$(3)\([0-9][^"]*\).*|\1|p' | \
+  $(GREP) -i -v RC | $(GREP) -i -v BETA | \
+  $(SORT) -V | \
+  tail -1
+endef
+
 define UPDATE
     $(if $(2),
         $(if $(filter $(2),$($(1)_IGNORE)),