🐛 add validators to ProjectDB model

[matusdrobuliak66]

What do these changes do?

• 🐛 add validators to ProjectDB model

Related issue/s

• relates ♻️ project & project node PATCH 🚨  #5802

How to test

Dev-ops checklist

• No ENV changes or I properly updated ENV (read the instruction)

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.7%. Comparing base (cafbf96) to head (d26b0f7).
Report is 197 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##           master   #5810      +/-   ##
=========================================
- Coverage    84.5%   81.7%    -2.9%     
=========================================
  Files          10     558     +548     
  Lines         214   28232   +28018     
  Branches       25     205     +180     
=========================================
+ Hits          181   23083   +22902     
- Misses         23    5097    +5074     
- Partials       10      52      +42     

Flag	Coverage Δ
integrationtests	65.1% <100.0%> (?)
unittests	87.0% <100.0%> (+2.4%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
...r/src/simcore_service_webserver/projects/models.py	100.0% <100.0%> (ø)

... and 567 files with indirect coverage changes