feat: platform setting for enabling/disabling Vela secrets

[ecrupper]

Helpful addition for platforms that have strict secret storage policies / strategies

[codecov]

Codecov Report

❌ Patch coverage is 66.31579% with 32 lines in your changes missing coverage. Please review.
✅ Project coverage is 58.37%. Comparing base (0ea4d84) to head (8021cf1).

Files with missing lines	Patch %	Lines
router/middleware/perm/perm.go	45.94%	16 Missing and 4 partials ⚠️
api/admin/settings.go	0.00%	6 Missing ⚠️
api/types/settings/platform.go	84.61%	6 Missing ⚠️

❌ Your project check has failed because the head coverage (58.37%) is below the target coverage (90.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1384      +/-   ##
==========================================
+ Coverage   58.36%   58.37%   +0.01%     
==========================================
  Files         645      645              
  Lines       24864    24931      +67     
==========================================
+ Hits        14511    14554      +43     
- Misses       9681     9701      +20     
- Partials      672      676       +4     

Files with missing lines	Coverage Δ
cmd/vela-server/flags.go	100.00% <ø> (ø)
database/settings/table.go	100.00% <ø> (ø)
database/types/settings.go	65.04% <100.00%> (+1.79%)	⬆️
mock/server/settings.go	0.00% <ø> (ø)
api/admin/settings.go	0.00% <0.00%> (ø)
api/types/settings/platform.go	77.12% <84.61%> (+1.95%)	⬆️
router/middleware/perm/perm.go	59.62% <45.94%> (-1.82%)	⬇️

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[wass3rw3rk]

maybe add comment to deal with Function 'MustSecretAdmin' is too long (174 > 160) (funlen) or break up func?

[plyr4]

nice, random thought but showing a pipeline warning when someone uses them while theyre disabled might be cool

[ecrupper]

nice, random thought but showing a pipeline warning when someone uses them while theyre disabled might be cool

Good idea but the pipeline will just fail completely because the worker won't be able to retrieve the secret, so I think that will serve as enough of a warning 😅