modules: update ffmuc-mesh-vpn-wireguard

* ffmuc-mesh-vpn-wireguard: move check connectivitiy in function to
  test twice if node is connectd
* ffmuc-mesh-vpn-wireguard: add User-Agent if contacting broker
* ffmuc-mesh-vpn-wireguard: make file executable
* ffmuc-mesh-vpn-wireguard: fix uci value deletion

(cherry picked from commit 0c22e9a)

modules

@@ -9,5 +9,5 @@
 GLUON_SITE_FEEDS='community'
 
 PACKAGES_COMMUNITY_REPO=https://github.com/freifunk-gluon/community-packages.git
-PACKAGES_COMMUNITY_COMMIT=e0267b11142cc526910b0cc1c4f589d45216b2a9
+PACKAGES_COMMUNITY_COMMIT=1e70e0744846de83f0b42384bd326a1cde5d9a1a
 PACKAGES_COMMUNITY_BRANCH=master