fix: stack buffer underflow in `tim_sort.cpp`

[vil02]

Description of Change

tim_sport has a stack buffer underflow. This PR fixes it and runs clang-format on this file.

Checklist

• [x] Added description of change
• [x] Added file name matches File name guidelines
• [x] Added tests and example, test must pass
• [x] Added documentation so that the program is self-explanatory and educational - Doxygen guidelines
• [x] Relevant documentation/comments is changed or added
• [x] PR title follows semantic commit guidelines
• [x] Search previous suggestions before making a new one, as yours may be a duplicate.
• [x] I acknowledge that all my contributions will be made under the project's license.

Notes: Fixes memory issue in tim_sport.

[realstealthninja]

note: fixes memory issue in timsort

There are no dynamic allocations in this file?

[vil02]

note: fixes memory issue in timsort

There are no dynamic allocations in this file?

There are: https://github.com/TheAlgorithms/C-Plus-Plus/blob/b6108e494dbd9ef05926fc5e8bc7f60147445ecb/sorting/tim_sort.cpp#L27

But they are cleaned afterwards: https://github.com/TheAlgorithms/C-Plus-Plus/blob/b6108e494dbd9ef05926fc5e8bc7f60147445ecb/sorting/tim_sort.cpp#L60

[realstealthninja]

I see thank you for the clarification 🙂