Update ASEconvert requirement from 0.1.8 to 0.1.8, 0.2 in /docs

Updates the requirements on [ASEconvert](https://github.com/mfherbst/ASEconvert.jl) to permit the latest version.
- [Release notes](https://github.com/mfherbst/ASEconvert.jl/releases)
- [Commits](mfherbst/ASEconvert.jl@v0.1.8...v0.2.0)

---
updated-dependencies:
- dependency-name: ASEconvert
  dependency-version: 0.2.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

docs/Project.toml

@@ -19,7 +19,7 @@ UnitfulAtomic = "a7773ee8-282e-5fa2-be4e-bd808c38a91a"
 GeometryOptimization = {path = ".."}
 
 [compat]
-ASEconvert = "0.1.8"
+ASEconvert = "0.1.8, 0.2"
 DFTK = "0.7"
 Documenter = "~1.8"
 PseudoPotentialData = "0.2"