- Problem with escaping chars
 - Killing properly tshark process on EPC
 - standalone Terminate eNB was failing

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

The previous version would trigger sub-pipelines (LTE-2x2, ...) if no MR
had the NSA tag (without a commit, etc). Of course, this would make all
pipelines subsequently fail (as not enough arguments, such as the
commit, were given). In this commit, we read the output of `jq` from
JSON, which will result in an empty list if no MR is tagged with the NSA
label (and the output in the console will be nicer as well).

For pubkey, checks that we are on the right machine

This reverts commit 01227494.

Physical simulators are built using address sanitizer. During the build
process, we use generators that are themselves built during the build
process. They are also asan, and we therefore need to give the
SYS_PTRACE capability during the build process to have them run
correctly.