Update browserslist DB

[edx-requirements-bot]

Updated browserslist DB

[codecov[bot]]

Codecov Report

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

Project coverage is 89.25%. Comparing base (f778f27) to head (6b75991).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1541 +/- ## ======================================= Coverage 89.25% 89.25% ======================================= Files 318 318 Lines 5563 5563 Branches 1341 1376 +35 ======================================= Hits 4965 4965 + Misses 583 582 -1 - Partials 15 16 +1 ```

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