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/constant_constexpr.pyx

@@ -0,0 +1,21 @@
+from libc.stdint cimport int8_t, int16_t, int32_t, int64_t, intptr_t
+from libc.stdint cimport uint8_t, uint16_t, uint32_t, uint64_t, uintptr_t
+cdef extern from *:
+  ctypedef bint bool
+  ctypedef struct va_list
+
+cdef extern from *:
+
+  const int64_t CONSTANT_I64 # = 216
+
+  const float CONSTANT_FLOAT32 # = 312.292
+
+  const uint32_t DELIMITER # = ':'
+
+  const uint32_t LEFTCURLY # = '{'
+
+  ctypedef struct Foo:
+    int32_t x;
+  const int64_t Foo_CONSTANT_I64_BODY # = 216
+
+  const Foo SomeFoo # = <Foo>{ 99 }