set the default retry-interval unit to seconds

[rgl]

without a unit it was using 3ns instead of 3s

Description

I've noticed the tink-worker retry-interval was set to 3ns instead of 3s:

Why is this needed

Its needed to match the documentation and because 3s is a saner value than 3ns.

How Has This Been Tested?

How are existing users impacted? What migration steps/scripts do we need?

Checklist:

I have:

• updated the documentation and/or roadmap (if required)
• added unit or e2e tests
• provided instructions on how to upgrade

[mmlb]

ha!

[codecov]

Codecov Report

Merging #548 (f9b9d01) into main (5923ca9) will not change coverage.
The diff coverage is n/a.

❗ Current head f9b9d01 differs from pull request most recent head d3e53dd. Consider uploading reports for the commit d3e53dd to get more accurate results

@@           Coverage Diff           @@
##             main     #548   +/-   ##
=======================================
  Coverage   34.76%   34.76%           
=======================================
  Files          44       44           
  Lines        3348     3348           
=======================================
  Hits         1164     1164           
  Misses       2085     2085           
  Partials       99       99           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 5923ca9...d3e53dd. Read the comment docs.