Cleanup: Remove data duplication from BLI_any.hh support variables

Use `inline constexpr` instead of `static constexpr` to prevent these
variables from being duplicated in each translation unit that includes
the BLI_any.hh header.

Differential Revision: https://developer.blender.org/D15698

source/blender/blenlib/BLI_any.hh

@@ -39,7 +39,7 @@ template<typename ExtraInfo> struct AnyTypeInfo {
  * Used when #T is stored directly in the inline buffer of the #Any.
  */
 template<typename ExtraInfo, typename T>
-static constexpr AnyTypeInfo<ExtraInfo> info_for_inline = {
+inline constexpr AnyTypeInfo<ExtraInfo> info_for_inline = {
     is_trivially_copy_constructible_extended_v<T> ?
         nullptr :
         +[](void *dst, const void *src) { new (dst) T(*(const T *)src); },
@@ -57,7 +57,7 @@ static constexpr AnyTypeInfo<ExtraInfo> info_for_inline = {
  */
 template<typename T> using Ptr = std::unique_ptr<T>;
 template<typename ExtraInfo, typename T>
-static constexpr AnyTypeInfo<ExtraInfo> info_for_unique_ptr = {
+inline constexpr AnyTypeInfo<ExtraInfo> info_for_unique_ptr = {
     [](void *dst, const void *src) { new (dst) Ptr<T>(new T(**(const Ptr<T> *)src)); },
     [](void *dst, void *src) { new (dst) Ptr<T>(new T(std::move(**(Ptr<T> *)src))); },
     [](void *src) { std::destroy_at((Ptr<T> *)src); },