Build fails on Fedora 43: 'uint64_t' not declared in string_util.h (missing <cstdint> include)

[ShelpAm]

Steps to reproduce the issue:

1. cd to the root of the project.
2. cmake -Bbuild -S.
3. cmake --build build
4. The compiler then reports:

In file included from /home/shelpam/Documents/projects/bustub/src/common/util/string_util.cpp:22:
/home/shelpam/Documents/projects/bustub/src/include/common/util/string_util.h:62:26: error: ‘uint64_t’ has not been declared
   62 |   static auto FormatSize(uint64_t bytes) -> std::string;
      |                          ^~~~~~~~
/home/shelpam/Documents/projects/bustub/src/include/common/util/string_util.h:1:1: note: ‘uint64_t’ is defined in header ‘<cstdint>’; this is probably fixable by adding ‘#include <cstdint>’
  +++ |+#include <cstdint>
    1 | //===----------------------------------------------------------------------===//
/home/shelpam/Documents/projects/bustub/src/common/util/string_util.cpp:137:6: error: no declaration matches ‘std::string bustub::StringUtil::FormatSize(uint64_t)’
  137 | auto StringUtil::FormatSize(uint64_t bytes) -> std::string {
      |      ^~~~~~~~~~
/home/shelpam/Documents/projects/bustub/src/include/common/util/string_util.h:62:15: note: candidate is: ‘static std::string bustub::StringUtil::FormatSize(int)’
   62 |   static auto FormatSize(uint64_t bytes) -> std::string;
      |               ^~~~~~~~~~
/home/shelpam/Documents/projects/bustub/src/include/common/util/string_util.h:23:7: note: ‘class bustub::StringUtil’ defined here
   23 | class StringUtil {

A probable solution may be adding #include <cstdint> to the front of src/include/common/util/string_util.h , as the compiler hinted.

[ShelpAm]

I also find the same issue exists on other files:

• src/include/primer/orset_driver.h

Finally fixed the issue by includeing cstdint header in those files.