Fixes Brave Ads crash querying database - 1.19.x

[tmancey]

Uplift of #7314
Resolves brave/brave-browser#12993

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• You have tested your change on Nightly.
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[kjozwiak]

Restarting pre-init via https://ci.brave.com/job/pr-brave-browser-issues-12993-1.19.x-pre-init/2/ as it failed as per https://ci.brave.com/job/pr-brave-browser-issues-12993-1.19.x-pre-init/1/execution/node/74/log/.

test-browser failed on Linux due to SearchEngineProviderP3ATest.DefaultSearchEngineP3A failing as per https://ci.brave.com/job/pr-brave-browser-issues-12993-1.19.x-linux/1/execution/node/202/log/. However, this is a known issue as per brave/brave-browser#13057 and doesn't block uplift.

14:07:04  1 test failed:
14:07:04      SearchEngineProviderP3ATest.DefaultSearchEngineP3A (../../brave/browser/search_engines/search_engine_tracker_browsertest.cc:30)

Restarting iOS via https://ci.brave.com/job/pr-brave-browser-issues-12993-1.19.x-ios/2/ due to build failing as per https://ci.brave.com/job/pr-brave-browser-issues-12993-1.19.x-ios/1/execution/node/138/log/.

13:05:21  FAILED: obj/base/base/json_writer.o 

[kjozwiak]

Uplift into 1.19.x approved after deliberating with @brave/uplift-approvers. QA has verified the PR on Nightly as per #7314 (comment).