rust-lru bump to 0.16.4

This Closes: #1117785 (cc: @js @werdahias . Needed for swc and btm).

MR with all lru rdeps bumped at once: !1149

fish: debian/fish!9 (closes #1137655)

Closes: #1117785

Old MRs in case we wanted to bump them one by one. Kept in the description for historical purposes and to close them as superseded.

• concread: !1141 (closed)
• rqrr: !1142 (closed)
• sapling-streampager: !1143 (closed)
• dav-server: !1144 (closed)
• ratatui-core: !1145 (closed)
• ratatui: !1146 (closed)
• broot: !1147 (closed)