v0.6.8

GeoParams v0.6.8

Diff since v0.6.7

Merged pull requests:

• New functionality to nondimensionalisation (#233) (@aelligp)
• Add a downstream pipeline for testing (#234) (@aelligp)
• AD type management and implementation (part I/X) (#235) (@jfrasunk)
• Bump codecov/codecov-action from 4 to 5 (#236) (@dependabot[bot])
• Bump crate-ci/typos from 1.26.8 to 1.28.1 (#237) (@dependabot[bot])
• Documentation for Permeability (#238) (@aelligp)
• Conduit densities (#239) (@aelligp)
• Update Project.toml (#240) (@aelligp)