Handle trying to play workflows which require upgrade

[wxtim]

Sibling: cylc/cylc-flow#5535

Closes #429

• Intercept error message about versions and upgrading and post
  it to a more helpful error message than stardard "This Cylc Play command failed"
• Add a toggle for the --upgrade option of Cylc Play

Check List

• I have read CONTRIBUTING.md and added my name as a Code Contributor.
• Contains logically grouped changes (else tidy your branch by rebase).
• Does not contain off-topic changes (use other PRs for other changes).
• Applied any dependency changes to both setup.cfg (and conda-environment.yml if present).
• Tests are included - manually tested, thoughts on automated testing welcomed.
• CHANGES.md entry included if this is a change that can affect users
• Cylc-Doc pull request opened if required at cylc/cylc-doc/pull/XXXX. N/A
• If this is a bug fix, PR should be raised against the relevant ?.?.x branch.

Manual Testing

• Run a workflow with Cylc 8.1, then stop it.
• Change to Cylc 8.2
• Load up the GUI (if you haven't already)
• Play workflow using the main button - watch for failure
• Play workflow using the burger bar, edit (pencil) and toggle upgrade (it's near the bottom). watch for success.

[codecov-commenter]

Codecov Report

Patch coverage: 33.33% and project coverage change: -0.47% ⚠️

Comparison is base (2b866af) 77.24% compared to head (25a2924) 76.77%.
Report is 2 commits behind head on 1.3.x.

Additional details and impacted files

@@            Coverage Diff             @@
##            1.3.x     #455      +/-   ##
==========================================
- Coverage   77.24%   76.77%   -0.47%     
==========================================
  Files          12       12              
  Lines        1415     1408       -7     
  Branches      239      233       -6     
==========================================
- Hits         1093     1081      -12     
- Misses        276      279       +3     
- Partials       46       48       +2     

Files Changed	Coverage Δ
cylc/uiserver/resolvers.py	55.31% <0.00%> (-0.24%)	⬇️
cylc/uiserver/schema.py	71.01% <100.00%> (+0.21%)	⬆️

... and 3 files with indirect coverage changes

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[MetRonnie]

Tested out by artificially changing the cylc_version value to 8.0.3 in workflow_params table, looks good

[MetRonnie]

Needs rebasing onto master

[MetRonnie]

Any reason this can't go on 1.3.x?

[oliver-sanders]

Dammit, I had a pending review, sorry.

Any reason this can't go on 1.3.x?

Yeah, this could go in 1.3.x, note 1.4.0 will hopefully be released shortly.

[wxtim]

@oliver-sanders / @MetRonnie Want to hit the merge button? We don't have separate master/1.4.x branches, so I suppose that we haven't got any major changes?