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/generic_pointer.both.c

@@ -0,0 +1,12 @@
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+typedef struct Foo_____u8 {
+  uint8_t *a;
+} Foo_____u8;
+
+typedef struct Foo_____u8 Boo;
+
+void root(Boo x);