Rebuild pgbouncer image with newer version

[robertvolkmann]

Bump base image because alpine 3.14 is end-of-live

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[boring-cyborg]

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[github-actions]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed in 5 days if no further activity occurs. Thank you for your contributions.

[potiuk]

I built and push the image. Merging.

[boring-cyborg]

Awesome work, congrats on your first merged pull request! You are invited to check our Issue Tracker for additional contributions.