Updated to 26.1.x

Updated to 1.21.11

Port of 3.0.3 to 3.0.14 for the datapack version.

• Raised the cloud height to 256.
• Fixed caves being too rare.
• Fixed an issue where Meadows incorrectly generated in valley terrain.
• Noodle caves are now cut off at the surface like all other noise caves.
• Chunk generation speeds improved, although likely by less than base Tectonic's 30% due to Terralith being laggy itself.

Copy of Tectonic v3. The Terratonic version number now matches the Tectonic version number.

Parity with Tectonic v2.4.0a.