fix(purge): do not use deletion_time field in the comments deletion

[s-duret]

Description

Currently, the purge script deletes comments only in these two cases:

• a retention duration is set AND the deletion time is older than the retention
• a retention duration is set AND the expire time is older than the retention

Deletion time is set if we delete a comment from the GUI or if a downtime ends.

We need to change the condition and delete comments taking into account the entry time.

Fixes MON-13407

Type of change

• Patch fixing an issue (non-breaking change)
• New functionality (non-breaking change)
• Breaking change (patch or feature) that might cause side effects breaking part of the Software
• Updating documentation (missing information, typo...)

Target serie

• 20.10.x
• 21.04.x
• 21.10.x
• 22.04.x (master)

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11 Bugs
0 Vulnerabilities
0 Security Hotspots ( 100.0% reviewed)
3344 Code Smells

0.0% Coverage
4.3% Duplication