WPB-27157- update timestamp for GPG key and regenerate it

[Veki301]

Change type

• Fix
• Feature
• Documentation
• Security / Upgrade

Basic information

• THIS CHANGE REQUIRES A DEPLOYMENT PACKAGE RELEASE
• THIS CHANGE REQUIRES A WIRE-DOCS RELEASE

Testing

• I ran/applied the changes myself, in a test environment.
• The CI job attached to this repo will test it for me.

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Tracking

• I added a new entry in an appropriate subdirectory of changelog.d
• I mentioned this PR in Jira, OR I mentioned the Jira ticket in this PR.
• I mentioned this PR in one of the issues attached to one of our repositories.

Knowledge Transfer

• An Asciinema session is attached to the Jira ticket.

Motivation

Objective

Reason

Use case