RPM build fix (reverted CI changes which will need to be un-reverted or made conditional) and vendor Rust dependencies to make builds much faster in any CI system.

zeroidc/vendor/cbindgen/tests/expectations/enum_discriminant.cpp

@@ -0,0 +1,23 @@
+#include <cstdarg>
+#include <cstdint>
+#include <cstdlib>
+#include <ostream>
+#include <new>
+
+static const int8_t FOURTY_FOUR = 4;
+
+enum class E : int8_t {
+  A = 1,
+  B = -1,
+  C = (1 + 2),
+  D = FOURTY_FOUR,
+  F = 5,
+  G = (int8_t)54,
+  H = (int8_t)false,
+};
+
+extern "C" {
+
+void root(const E*);
+
+} // extern "C"