databases/mongodb50: update to 5.0.27
changes:
https://www.mongodb.com/docs/manual/release-notes/5.0/#5.0.27---jun-04--2024
- distfiles are not distributed in the "old" way anymore so switch to github. I couldn't find an official remark about this and my question on the MongoDB forum is unanswered. https://www.mongodb.com/community/forums/t/mongodb-5-0-27-is-released/283806/2?u=r_k NB: mongodb60 and mongodb70 already get the source via github.
- tweak the comment and pkg-descr to use words upstream uses.