Merged update from upstream sources

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Source: https://src.fedoraproject.org/rpms/protobuf-c.git#d6f3a98c6156c5921d738e9acb1890797a15d8c7

protobuf-c.spec

@@ -1,6 +1,6 @@
 Name:           protobuf-c
 Version:        1.3.3
-Release:        5%{?dist}
+Release:        6%{?dist}
 Summary:        C bindings for Google's Protocol Buffers
 
 License:        BSD
@@ -66,6 +66,9 @@ rm -vf $RPM_BUILD_ROOT/%{_libdir}/libprotobuf-c.la
 %{_libdir}/pkgconfig/libprotobuf-c.pc
 
 %changelog
+* Wed Jan 27 2021 Fedora Release Engineering <releng@fedoraproject.org> - 1.3.3-6
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
+
 * Tue Jan 12 14:04:27 CET 2021 Adrian Reber <adrian@lisas.de> - 1.3.3-5
 - Rebuilt for protobuf 3.14