feature/nanocld: save db cert to exange it during multinode

[0xle0ne]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 45.00000% with 22 lines in your changes missing coverage. Please review.
✅ Project coverage is 65.60%. Comparing base (a618997) to head (e535181).
⚠️ Report is 1 commits behind head on nightly.

Files with missing lines	Patch %	Lines
bin/nanocld/src/utils/store.rs	45.00%	22 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           nightly    #1279      +/-   ##
===========================================
+ Coverage    65.34%   65.60%   +0.25%     
===========================================
  Files          293      293              
  Lines        16062    16102      +40     
===========================================
+ Hits         10496    10563      +67     
+ Misses        5566     5539      -27     

Flag	Coverage Δ
unittests	65.60% <45.00%> (+0.25%)	⬆️

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

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.