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/prefixed_struct_literal.both.c

@@ -0,0 +1,14 @@
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+typedef struct PREFIXFoo {
+  int32_t a;
+  uint32_t b;
+} PREFIXFoo;
+#define PREFIXFoo_FOO (PREFIXFoo){ .a = 42, .b = 47 }
+
+#define PREFIXBAR (PREFIXFoo){ .a = 42, .b = 1337 }
+
+void root(struct PREFIXFoo x);