update renderctx sig

[Cxiro]

[FloppyDolphin57]

Make a 1.17.30 branch instead as the GitHub gets autocompiled and uploaded for the injector

[theclashingfritz]

If the signature is "48 8B C4 48 89 58 ?? 55 56 57 41 54 41 55 41 56 41 57 48 8D A8 ?? ?? ?? ?? 48 81 EC ?? ?? ?? ?? 0F 29 70 ?? 0F 29 78 ?? 48 8B 05 ?? ?? ?? ?? 48 33 C4 48 89 85 ?? ?? ?? ?? 4C 8B FA 48 89 54 24 ?? 4C" instead. Then it's backwards compatible with 1.17.11.1.