demo file is not created after X amounts of bytes

[tcsabina]

There seems to be some hardcoded limit for file size for a demo. Certain matches overflow this (like a 10on10 on a big map), resulting in a not recorded demo.
Console text:
[2021-11-15 15:08:35] Embedding (./ktx/demoinfo_127.0.1.1_28501.json):
[2021-11-15 15:08:35] SZ_GetSpace: overflow: cur = 26512, len = 8084, max = 32408
[2021-11-15 15:08:35] Error in MVD/QTV recording, recording stopped
[2021-11-15 15:08:35] failed write to mvd/qtv
[2021-11-15 15:08:35] Not recording demo!