DB tunnel fails with high frequency

[davidgamez]

Describe the bug

The DB tunnel fails with high frequency. We have already increased the timeout to 15 seconds, which reduces the failures, but we haven't removed them completely. As a follow-up fix, we can add two(or three) retries to the script with a back-off period.

Steps/Code to Reproduce

This usually happens when the machine has been without use for a prolonged period (a few hours). It's hard to reproduce when done manually.
Example failing action: https://github.com/MobilityData/mobility-feed-api/actions/runs/11846311567/attempts/1

Expected Results

The tunnel consistently connects with the DB proxy instance.

Actual Results

The tunnel fails to connect.

Screenshots

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Files used

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Additional notes

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