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_self.both.c

@@ -0,0 +1,29 @@
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+typedef struct Foo_Bar {
+  const int32_t *something;
+} Foo_Bar;
+
+enum Bar_Tag {
+  Min,
+  Max,
+  Other,
+};
+typedef uint8_t Bar_Tag;
+
+typedef union Bar {
+  Bar_Tag tag;
+  struct {
+    Bar_Tag min_tag;
+    struct Foo_Bar min;
+  };
+  struct {
+    Bar_Tag max_tag;
+    struct Foo_Bar max;
+  };
+} Bar;
+
+void root(union Bar b);