v0.9.0

Express v0.9.0

Diff since v0.8.0

Merged pull requests:

• CompatHelper: bump compat for SimpleWorkflows to 0.16, (keep existing compat) (#221) (@github-actions[bot])
• Rename operators as in MineralsCloud/SimpleWorkflows.jl#129 (#222) (@singularitti)
• Use JLD2 in EquationOfStateWorkflow instead of stdlib Serialization (#223) (@singularitti)
• Update docs (#224) (@singularitti)