[FB-656] Security Updates for openssh vulnerabilities

[pasanchamikara]

Description of your patch

This PR updates 'net-misc/openssh` to it's latest version.

Recommended Release Notes

Apply latest security updates to openssh

Estimated risk

Medium

Components involved

security updates recipe

Description of testing done

• Booted a solo env (Ruby app) and checked (through emerge -upDN1 world ) that openssh have updates available.
• Updated the local chef recipes(In the instance) with the changes in this PR.
• Executed /home/ey/bin/chef-solo -j /etc/chef/dna.json -c /etc/chef/solo.rb
• Checked openssh is updated to the latest version available (eix net-misc/openssh) .

QA Instructions

• Test a PHP application
• Test different environment configurations

[jfuechsl]

For the openssh upgrade to take effect, please add a notifies handler to restart the sshd service.
For example: notifies :restart, 'service[sshd]'. This also needs the corresponding service resource (with action :nothing).