Consider prior for the inflation here?

https://github.com/CliMA/EnsembleKalmanProcesses.jl/blob/6c8403420eaf9fded56b8019056bff231a58ec13/src/EnsembleKalmanProcess.jl#L1122-L1125

	# Reduce condition number to 1/sqrt(eps(FT))
	inflation = eigmax(cov_u_new) * sqrt(eps(FT))
	end
	cov_u_new = cov_u_new + inflation * I

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