Port the MISMIP+ spinup testcase from the old version of compass #905

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8 warnings

warning libmamba Cache file "/home/runner/conda_pkgs_dir/cache/497deca9.json" was modified by another program

warning libmamba Cache file "/home/runner/conda_pkgs_dir/cache/09cdf8bf.json" was modified by another program

warning libmamba Could not parse state file: Could not load cache state: [json.exception.type_error.302] type must be string, but is null

warning libmamba Cache file "/home/runner/conda_pkgs_dir/cache/47929eba.json" was modified by another program

warning libmamba Cache file "/home/runner/conda_pkgs_dir/cache/3e39a7aa.json" was modified by another program

warning libmamba Cache file "/home/runner/conda_pkgs_dir/cache/2ce54b42.json" was modified by another program

warning libmamba Cache file "/home/runner/conda_pkgs_dir/cache/4ea078d6.json" was modified by another program