Update watch file format version to 4.

Changes-By: lintian-brush
Fixes: lintian: older-debian-watch-file-standard
See-also: https://lintian.debian.org/tags/older-debian-watch-file-standard.html

debian/changelog

@@ -13,6 +13,7 @@ java-jmx-clojure (0.3.4-2) UNRELEASED; urgency=medium
   * Reorder sequence of d/control fields by cme (routine-update)
   * Drop useless get-orig-source target (routine-update)
   * Remove trailing whitespace in debian/rules (routine-update)
+  * Update watch file format version to 4.
 
  -- Louis-Philippe Véronneau <pollo@debian.org>  Sat, 08 Jan 2022 18:33:09 -0500
 

debian/watch

-version=3
+version=4
 https://github.com/clojure/java.jmx/tags .*\-([\d\.]+)\.tar\.gz