Add skipValidation flag for GetPriceQuote call (uplift to 1.34.x)

[brave-builds]

Uplift of #11903
Resolves brave/brave-browser#20572

Pre-approval checklist:

• You have tested your change on Nightly.
• This contains text which needs to be translated.
  • There are more than 7 days before the release.
  • I've notified folks in #l10n on Slack that translations are needed.
• The PR milestones match the branch they are landing to.

Pre-merge checklist:

• You have checked CI and the builds, lint, and tests all pass or are not related to your PR.

Post-merge checklist:

• The associated issue milestone is set to the smallest version that the changes is landed on.

[kjozwiak]

Restarting Win due to an issue with the node as per https://ci.brave.com/job/pr-brave-browser-pr11903_skip_validation_flag_1.34.x-windows/1/execution/node/108/log/.

An error occurred (IncorrectInstanceState) when calling the StopInstances operation: This instance 'i-0598bff02c193979a' is not in a state from which it can be stopped.

Restarting macOS due to npm timing out as per https://ci.brave.com/job/pr-brave-browser-pr11903_skip_validation_flag_1.34.x-macos/1/execution/node/130/log/.

 Error: Timeout trying to fetch resolutions from npm

[kjozwiak]

Restarting Linux due to the same issue that Win had re: issues with the instance/node as per https://ci.brave.com/job/pr-brave-browser-pr11903_skip_validation_flag_1.34.x-linux/1/execution/node/101/log.

01:35:04  An error occurred (InvalidInstanceID.NotFound) when calling the StopInstances operation: The instance ID 'i-07eb190178f19c528' does not exist

[kjozwiak]

Uplift into 1.34.x approved after deliberating with @brave/uplift-approvers. QA has verified the PR on Nightly as per #11903 (comment).