[elpa] externals/vertico updated (46e8e05650 -> 21ac5a946b)

[ELPA Syncer]

elpasync pushed a change to branch externals/vertico.

      from  46e8e05650 README: Update URL of Prot's Mct
       new  944388dd45 Indentation
       new  00d0a76c41 Store a string in vertico--base
       new  23af69e4f9 Simplify vertico--history-hash cache validation
       new  21ac5a946b Introduce vertico-sort-override-function


Summary of changes:
 README.org                      |  3 ++-
 extensions/vertico-directory.el |  6 +++---
 vertico.el                      | 34 +++++++++++++++++-----------------
 3 files changed, 22 insertions(+), 21 deletions(-)