Make checkpoint error easier to understand by properly quoting table names.
Make checkpoint error easier to understand by properly quoting table names.

* Before: "Trying to load table table but table was not found in provided list of tables. Available tables: ['other_table', 'another_table']"
* After: "Trying to load table 'table' but table was not found in provided list of tables. Available tables: ['other_table', 'another_table']"

PiperOrigin-RevId: 435578568
Change-Id: If922d4622455a16a2de224ca03df39d3cdb74b7f

deepmind/reverb,deepmind/reverb,deepmind/reverb,deepmind/reverb