Update margin cache catalog info parameters

[camposandro]

Adds the catalog specific metadata ("epoch", "ra" and "dec") to the margin catalog info output. Closes #331.

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 99.78%. Comparing base (3b2c3ae) to head (87ecd85).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #332 +/- ## ======================================= Coverage 99.78% 99.78% ======================================= Files 26 26 Lines 1389 1389 ======================================= Hits 1386 1386 Misses 3 3 ```

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