fix(api-database): tolerate concurrent CREATE EXTENSION race during bootstrap

[oXtxNt9U]

Summary

Can be occasionally seen during E2E consensus test runs:

Checklist

• Documentation (if necessary)
• Tests (if necessary)
• Ready to be merged

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 77.32%. Comparing base (cb0af1f) to head (faf8950).

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1419      +/-   ##
===========================================
+ Coverage    76.91%   77.32%   +0.40%     
===========================================
  Files          921      933      +12     
  Lines        15812    16253     +441     
  Branches      2067     2145      +78     
===========================================
+ Hits         12162    12567     +405     
- Misses        3645     3679      +34     
- Partials         5        7       +2     

Flag	Coverage Δ
contracts	91.76% <ø> (?)
packages	76.92% <100.00%> (+<0.01%)	⬆️

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