This update for sngrep fixes the following issues:

- Update to version 1.8.1
* Fix CVE-2024-3119: sngrep: buffer overflow due to improper
handling of 'Call-ID' and 'X-Call-ID' SIP headers.
* Fix CVE-2024-3120: sngrep: stack-buffer overflow due to
inadequate bounds checking when copying 'Content-Length' and
'Warning' headers into fixed-size buffers.

- Update to versino 1.8.0
* fix typo in message, thanks to lintian.
* fix compiler warnings about unused variables.
* Fixed a typo in comment line in filter.c
* Redefine usage of POSIX signals.
* Support for building sngrep using CMake added.

- Update to version 1.7.0
* save: add option --text to save captured data to plain text
* capture: fix memory overflows while parsing IP headers
* hep: fix hep listener enabled in offline mode
* core: stop sngrep when parent process has ended
* ssl: fix decrypt with AES256 GCM SHA384 cipher