package/netsniff-ng: bump to version 0.6.6

Update to new released version:

    https://github.com/netsniff-ng/netsniff-ng/releases/tag/v0.6.6

Changelog:

    implement rotating capture files in netsniff-ng
    fixed '--in -' to work again with STDIN in trafgen
    fixed -t 0 option to use sendto in trafgen
    checksum calculation for ICMP and TCP in astraceroute
    fix for reading mirrors from file in astraceroute
    use GZIP_ENV instead of GZIP in build system
    added error handling for mismatched address families in mausezahn

Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/netsniff-ng/netsniff-ng.hash

@@ -1,2 +1,2 @@
 # Locally calculated after checking signature
-sha256 4966821510079bb13722b9fbb4b7567e44b1b4c3e1b1e7ad95f417a89be5d795 netsniff-ng-0.6.5.tar.xz
+sha256 7949d38eb5b507700ea0f3c87e9f804d87b43f86ea5de0e961451044c2d3dba2  netsniff-ng-0.6.6.tar.xz

package/netsniff-ng/netsniff-ng.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-NETSNIFF_NG_VERSION = 0.6.5
+NETSNIFF_NG_VERSION = 0.6.6
 NETSNIFF_NG_SITE = http://pub.netsniff-ng.org/netsniff-ng
 NETSNIFF_NG_SOURCE = netsniff-ng-$(NETSNIFF_NG_VERSION).tar.xz
 NETSNIFF_NG_LICENSE = GPL-2.0