zeromq: update UPSTREAM_CHECK_* variables to fix devtool upgrades

Update UPSTREAM_CHECK_* variables to fix UNKNOWN_BROKEN status with devtool
check-upgrade-status.

Signed-off-by: Yoann Congal <yoann.congal@smile.fr>
Reviewed-by: Alexandre Truong <alexandre.truong@smile.fr>

meta-oe/recipes-connectivity/zeromq/zeromq_4.3.5.bb

@@ -13,6 +13,7 @@ SRC_URI = "http://github.com/zeromq/libzmq/releases/download/v${PV}/zeromq-${PV}
 SRC_URI[sha256sum] = "6653ef5910f17954861fe72332e68b03ca6e4d9c7160eb3a8de5a5a913bfab43"
 
 UPSTREAM_CHECK_URI = "https://github.com/${BPN}/libzmq/releases"
+UPSTREAM_CHECK_REGEX = "releases/tag/v(?P<pver>\d+\.\d+\.\d+)"
 
 inherit cmake ptest pkgconfig