revert: Update Django DB manager to use psycopg3 and connection pooling

[prowler-bot]

Backport

This will backport the following commits from master to v5.2:

• revert: Update Django DB manager to use psycopg3 and connection pooling (#6717)

Questions ?

Please refer to the Backport tool documentation

[codecov]

Codecov Report

Attention: Patch coverage is 90.90909% with 2 lines in your changes missing coverage. Please review.

Project coverage is 90.05%. Comparing base (1fe1258) to head (d319bfe).
Report is 1 commits behind head on v5.2.

Additional details and impacted files

@@            Coverage Diff             @@
##             v5.2    #6719      +/-   ##
==========================================
- Coverage   93.71%   90.05%   -3.67%     
==========================================
  Files          67     1249    +1182     
  Lines        6352    40166   +33814     
==========================================
+ Hits         5953    36172   +30219     
- Misses        399     3994    +3595     

Flag	Coverage Δ
api	93.70% <90.90%> (-0.02%)	⬇️
prowler	89.37% <ø> (?)

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

Components	Coverage Δ
prowler	89.37% <ø> (∅)
api	93.70% <90.90%> (-0.02%)	⬇️