test(common): jest migration of the key-converter utility test cases

[petermetz]

1. The problem was that the database schema was defined in a way that was
   destroying timestamp information during insertion of records.
2. Updating the schema to hold the timestamp information made the test pass.

More information about why it's recommended to store datetime data with
the TIMESTAMPTZ column type is explained by the author of the node-postgres
library which is an important part of the problem (it assumes local time
for columns that do not store the timestamp time zone).

https://node-postgres.com/features/types#date--timestamp--timestamptz

Fixes #3373

Signed-off-by: Peter Somogyvari [email protected]

Pull Request Requirements

• Rebased onto upstream/main branch and squashed into single commit to help maintainers review it more efficient and to avoid spaghetti git commit graphs that obfuscate which commit did exactly what change, when and, why.
• Have git sign off at the end of commit message to avoid being marked red. You can add -s flag when using git commit command. You may refer to this link for more information.
• Follow the Commit Linting specification. You may refer to this link for more information.

Character Limit

• Pull Request Title and Commit Subject must not exceed 72 characters (including spaces and special characters).
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A Must Read for Beginners
For rebasing and squashing, here's a must read guide for beginners.

[RafaelAPB]

LGTM, great job