Sync clojure-mode-extra-font-locking.el version with clojure-mode.el

* It looks like the version of clojure-mode-extra-font-locking.el has been
out-of-sync with clojure-mode.el and has been stuck in 3.0.0 for a long time.
* This patch sync the version with the current snapshot.

Author: manphiz

CHANGELOG.md

@@ -6,6 +6,7 @@
 
 * Fix `clojure-align` when called from `clojure-ts-mode` major mode buffers.
 * [#671](https://github.com/clojure-emacs/clojure-mode/issues/671): Syntax highlighting for digits after the first in `%` args. (e.g. `%10`)
+* Sync version of `clojure-mode-extra-font-locking.el` with `clojure-mode.el`.
 
 # Changes
 

clojure-mode-extra-font-locking.el

@@ -4,7 +4,7 @@
 ;;
 ;; Author: Bozhidar Batsov <[email protected]>
 ;; URL: https://github.com/clojure-emacs/clojure-mode
-;; Version: 3.0.0
+;; Version: 5.19.0-snapshot
 ;; Keywords: languages, lisp
 ;; Package-Requires: ((clojure-mode "3.0"))