lang/fennel: Update to 1.5.3
Changelogs:
https://git.sr.ht/~technomancy/fennel/tree/1.5.1/item/changelog.md
https://git.sr.ht/~technomancy/fennel/tree/1.5.2/item/changelog.md
https://git.sr.ht/~technomancy/fennel/tree/1.5.3/item/changelog.md
Sponsored by: The FreeBSD Foundation