feat: fix task queue trigger for updating reports post release

[cka-y]

Summary: Closes #785 This pull request includes a small change to the .github/workflows/validator-update.yml file. The change corrects the queue name format and adds a location variable to the gcloud tasks create-http-task command.

• Corrected queue name format from update_validation_report_task_queue to update-validation-report-task-queue.
• Added --location parameter to the gcloud tasks create-http-task command.

Expected behavior: The task queue is successfully created. Example for this action run: update-validation-report-task-queue

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