fix memory leak on libstdc++

[Mishura4]

fixes https://github.com/brainboxdotcc/DPP/issues/1091 truly a GNU moment

Code change checklist

• [x] I have ensured that all methods and functions are fully documented using doxygen style comments.
• [x] My code follows the coding style guide.
• [x] I tested that my change works before raising the PR.
• [x] I have ensured that I did not break any existing API calls.
• [x] I have not built my pull request using AI, a static analysis tool or similar without any human oversight.

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[Jaskowicz1]

[Jaskowicz1]

Confirmed fixed on WSL

Memory currently at: 14127104
[2024-03-29 21:53:52] DEBUG: Shards started.
Memory currently at: 14127104
Memory currently at: 14127104
Memory currently at: 14127104
Memory currently at: 14127104
Memory currently at: 14127104
Memory currently at: 14127104
Memory currently at: 14127104

[Jaskowicz1]

Confirmed fixed on WSL

Memory currently at: 14127104
[2024-03-29 21:53:52] DEBUG: Shards started.
Memory currently at: 14127104
Memory currently at: 14127104
Memory currently at: 14127104
Memory currently at: 14127104
Memory currently at: 14127104
Memory currently at: 14127104
Memory currently at: 14127104

This seems to be a false positive from me. My image wasn't being sent so no memory was ever being added.

The issue still persists:

Memory currently at: 18853888
[2024-03-30 09:07:55] DEBUG: Shards started.
Memory currently at: 39813120
Memory currently at: 46161920
Memory currently at: 49405952
Memory currently at: 52580352
Memory currently at: 55758848
Memory currently at: 58998784
Memory currently at: 65417216
Memory currently at: 69402624
Memory currently at: 72646656
Memory currently at: 75821056
Memory currently at: 78794752
Final Mem Check - Memory currently at: 78794752
Final Mem Check - Memory currently at: 78794752
Final Mem Check - Memory currently at: 78794752
Final Mem Check - Memory currently at: 78794752
Final Mem Check - Memory currently at: 78794752
Final Mem Check - Memory currently at: 78794752
Final Mem Check - Memory currently at: 78794752
Final Mem Check - Memory currently at: 78794752
Final Mem Check - Memory currently at: 78794752
Final Mem Check - Memory currently at: 78794752
Final Mem Check - Memory currently at: 78794752
Final Mem Check - Memory currently at: 78794752
Final Mem Check - Memory currently at: 38891520