shells/fish: Update to 3.2.1

While here, appease both portclippy/portfmt and simplify port.

Changes: https://github.com/fish-shell/fish-shell/releases/tag/3.2.0

			https://github.com/fish-shell/fish-shell/releases/tag/3.2.1

PR: 254388
Reviewed by: asomers (maintainer)
Approved by: fernape (mentor)
Differential Revision: https://reviews.freebsd.org/D29395