periodic reference update

[aperijake]

Update the reference configuration periodically in FEM as a step towards semi-Lagrangian RKPM.

[trunk-io]

⏱️ 6h 7m total CI duration on this PR

Slowest 15 Jobs	Cumulative Duration	Recent Runs
Build Debug, GPU	3h 8m	⬜ 🟩
Build Debug	45m	🟩 🟩 🟩 🟩
Build Release	38m	🟩 ⬜ 🟩 🟩
Build Release, GPU	34m	⬜ 🟩
Test Release	14m	⬜ 🟩 🟩
Regression Test Debug	11m	🟩 🟩
Build Debug, Code Coverage	11m	🟩
Test Debug	5m	⬜ ⬜ 🟩 🟩
Setup	5m	🟥 🟩 🟩 🟩 🟩
Regression Test Debug, GPU	3m	🟩
Regression Test Release, GPU	3m	🟩
Analyze (javascript-typescript)	3m	🟩 🟩
Analyze (python)	2m	🟩 🟩
Test Debug, GPU	2m	🟩
Test Release, GPU	2m	🟩

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