chore: update node-convict dependency

[toufali]

Because

• a new patch version 6.2.5 is published

This pull request

• updates our dep to the latest

Issue that this pull request solves

Closes: FXA-13312

[Copilot]

Pull request overview

Updates the convict (node-convict) dependency across the monorepo to pick up the newly published patch release, ensuring all workspaces resolve the same version via the lockfile.

Changes:

• Bump convict from ^6.2.4 to ^6.2.5 in affected workspace package.json files.
• Regenerate yarn.lock to resolve convict@6.2.5 and update its integrity checksum.

Reviewed changes

Copilot reviewed 10 out of 11 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
yarn.lock	Updates the resolved convict package entry to 6.2.5 and refreshes checksum.
packages/fxa-profile-server/package.json	Bumps convict dependency to ^6.2.5.
packages/fxa-payments-server/package.json	Bumps convict dependency to ^6.2.5.
packages/fxa-event-broker/package.json	Bumps convict dependency to ^6.2.5.
packages/fxa-customs-server/package.json	Bumps convict dependency to ^6.2.5.
packages/fxa-content-server/package.json	Bumps convict dependency to ^6.2.5.
packages/fxa-auth-server/package.json	Bumps convict dependency to ^6.2.5.
packages/fxa-admin-server/package.json	Bumps convict dependency to ^6.2.5.
packages/fxa-admin-panel/package.json	Bumps convict dependency to ^6.2.5.
packages/db-migrations/package.json	Bumps convict dependency to ^6.2.5.
packages/123done/package.json	Bumps convict dependency to ^6.2.5.

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