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.c

@@ -0,0 +1,19 @@
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+#define FOURTY_FOUR 4
+
+enum E {
+  A = 1,
+  B = -1,
+  C = (1 + 2),
+  D = FOURTY_FOUR,
+  F = 5,
+  G = (int8_t)54,
+  H = (int8_t)false,
+};
+typedef int8_t E;
+
+void root(const E*);