docs: Document SSO expiry option

[tico24]

Checklist:

• My organization is added to USERS.md.

Fixes #5545 by documenting the sso expiry option.

[codecov]

Codecov Report

Merging #5552 (d6c5193) into master (13fa652) will increase coverage by 0.05%.
The diff coverage is n/a.

❗ Current head d6c5193 differs from pull request most recent head b47fc46. Consider uploading reports for the commit b47fc46 to get more accurate results

@@            Coverage Diff             @@
##           master    #5552      +/-   ##
==========================================
+ Coverage   47.05%   47.10%   +0.05%     
==========================================
  Files         240      240              
  Lines       15030    15030              
==========================================
+ Hits         7072     7080       +8     
+ Misses       7054     7051       -3     
+ Partials      904      899       -5     

Impacted Files	Coverage Δ
cmd/argo/commands/get.go	56.31% <0.00%> (ø)
workflow/controller/operator.go	71.17% <0.00%> (+0.32%)	⬆️
cmd/argoexec/commands/emissary.go	50.00% <0.00%> (+1.56%)	⬆️

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[simster7]

Thanks! Two minor comments

[tico24]

That said.. setting it to either "1" or "1h" doesn't boot me out after an hour....

[simster7]

That said.. setting it to either "1" or "1h" doesn't boot me out after an hour....

Bug report?

[alexec]

Make sure you restart the server after changing config. If you don’t get booted out, that’s a bug.

[tico24]

I have definitely restarted it. Long weekend here in the uk now, but I'll continue to test on Tuesday before raising a bug.