Silence psycopg2 warning

[j-bennet]

Description

This warning gets old.

Checklist

• [ ] I've added this contribution to the changelog.rst.
• I've added my name to the AUTHORS file (or it's already there).

[codecov-io]

Codecov Report

Merging #894 into master will increase coverage by 0.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #894      +/-   ##
==========================================
+ Coverage   85.22%   85.24%   +0.01%     
==========================================
  Files          22       22              
  Lines        2383     2385       +2     
==========================================
+ Hits         2031     2033       +2     
  Misses        352      352

Impacted Files	Coverage Δ
pgcli/main.py	77.42% <100%> (+0.06%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update da2c8e5...b8a6dfd. Read the comment docs.

[amjith]

I like the commit message. It captures the sentiment so very well. ✋