Fixes ad conversions fail after a creative has expired

[tmancey]

Resolves brave/brave-browser#10240

Submitter Checklist:

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  • https://github.com/brave/brave-browser/wiki/Fingerprinting-Protections
  • https://github.com/brave/brave-browser/wiki/Brave%E2%80%99s-Use-of-Referral-Codes
  • https://github.com/brave/brave-browser/wiki/Custom-Headers
  • https://github.com/brave/brave-browser/wiki/Web-compatibility-issues-with-tracking-protection
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Test Plan:

• Confim ad conversions work as expected after the creative has been removed from the catalog, i.e. expired
• Confirm ad conversions are removed from the Default/ads_service/bundfle_state sqlite database when the expiry date has elapsed (see expiry_timestamp column)

Reviewer Checklist:

• New files have MPL-2.0 license header.
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• Adequate test coverage exists to prevent regressions
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After-merge Checklist:

• The associated issue milestone is set to the smallest version that the
  changes has landed on.
• All relevant documentation has been updated.

[moritzhaller]

for debugging?

[tmancey]

Fixed :-)

[moritzhaller]

should expiry_timestamp be part of the PK to allow for a new conversion with an updated expiry date to be saved in the case that a campaign date updated in flight?

[tmancey]

If the observation_window or the expiry_timestamp change we want to update the current entry. And only insert entries if the creative_set_id, type and url_pattern are unique