libnss3 is not a dependency for Kibana on Debian apt.

[nicenemo]

Kibana version: 7.9.1

Server OS version: Debian 10 Buster. (standard AWS image)

Original install method (e.g. download page, yum, from source, etc.): apt from Elastic repositories

Describe the bug:

Libnss3 is not a dependency of the Kibana apt package for Debian.

Steps to reproduce:

1. sudo apt install kibana
2. sudo systemctl start kibana . libnss3 was not installed as dependency.
3. watch syslog and see Kibana complain with a linker error. (we have syslog installed, messages maybe in other configurations)

Expected behavior:
The apt package should install libnns3 as a dependency.

Provide logs and/or server output (if relevant):
Sorry already rotated and deleted.
But same problem as:

• [7.x] Add libnss3.so to Dockerfile template (reporting) (#75370) #75379
• [Reporting] Add libnss3.so to Dockerfile template (reporting) #75370
• [error][reporting] The Reporting plugin encountered issues launching Chromium in a self-test. You may have trouble generating reports. #53829
• Can't generate PDF with Chromium on Ubuntu 16.04 #23521

Workaround:

sudo apt install libnss3

[elasticmachine]

Pinging @elastic/kibana-operations (Team:Operations)