chore: bump stella2014-libretro digest to db6bee8

This MR contains the following updates:

Package	Update	Change
stella2014-libretro	digest	ceed5a5 -> db6bee8

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🗒Changelog
Compare revision ceed5a52549c313a12b4feb94c28411bdffb7612 to db6bee857f73138ae02755bf09e392b31fef4540

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