sngrep: bump to 1.6.0

[micmac1]

• use pcre2 instead of pcre
• add zlib support

Signed-off-by: Sebastian Kemper sebastian_ml@gmx.net

Maintainer: me Compile tested: master sdk ath79 Run tested: N/A

Description: Version bump

[micmac1]

Runtested on 22.03 ath79