[Diff since v0.6.12](https://github.com/JuliaMolSim/DFTK.jl/compare/v0.6.12...v0.6.13) **Merged pull requests:** - Switching to TestItemRunner (#888) (@epolack) - Update test selection mechanism (#901) (@mfherbst) - Update Spglib (#903) (@mfherbst) - Bump minimal Julia version to 1.8 (#905) (@mfherbst) - Add cutoff parameter to PspUpf (#906) (@azadoks) **Closed issues:** - Use TestItemRunner.jl for managing tests (#866)