[update] devel/protobuf-c 1.3.3

This is a simple update to the latest version which was released three
weeks ago. No ABI change.

Tested on amd64, macppc and sparc64 with the protobuf 3.11.4 update I
sent out yesterday.

The change log is very small and most of it is irrelevant for us:

[ Robert Edmonds ]
* Release 1.3.3.

* Fix build failure on protobuf 2.x (#398).

[ msshapira ]
* CMake: Fix support for MSVC static build (#350).

[ Adam Cozzette ]
* Fix some test assertions in test-generated-code2.c (#392).

[ Ilya Lipnitskiy ]
* protobuf-c.c: Make zigzag encoding more compact (#400).

[ Markus Engel ]
* CMake: Fix endianness check.

Index: Makefile
===================================================================
RCS file: /var/cvs/ports/devel/protobuf-c/Makefile,v
retrieving revision 1.17
diff -u -p -r1.17 Makefile
--- Makefile 20 Jul 2019 21:45:04 -0000 1.17
+++ Makefile 5 Mar 2020 08:37:32 -0000
@@ -2,7 +2,7 @@

COMMENT = c protocol buffers

-V = 1.3.2
+V = 1.3.3
DISTNAME = protobuf-c-$V

SHARED_LIBS = protobuf-c 2.0 # 1.0
Index: distinfo
===================================================================
RCS file: /var/cvs/ports/devel/protobuf-c/distinfo,v
retrieving revision 1.5
diff -u -p -r1.5 distinfo
--- distinfo 20 Jul 2019 17:44:50 -0000 1.5
+++ distinfo 5 Mar 2020 08:38:16 -0000
@@ -1,2 +1,2 @@
-SHA256 (protobuf-c-1.3.2.tar.gz) = U/JR8UxZe9sIeuzwtjYw9DTXP1oQ/BrFRQc1l1NbnnQ=
-SIZE (protobuf-c-1.3.2.tar.gz) = 500100
+SHA256 (protobuf-c-1.3.3.tar.gz) = IpVmBu9Qxg3h+rwTp4+8UIMKBEfXgEZ9PFGfhK1Sfng=
+SIZE (protobuf-c-1.3.3.tar.gz) = 500505