Make PROJECT parsing expression more concise

[mjbear]

Is your feature request related to a problem? Please describe.
This is not a problem and should be considered an enhancement idea.

Describe the solution you'd like
I'd like to make one of the parsing expressions more concise and possibly shave a few milliseconds off by using awk for most if not all of the expression.

🎯 Though for me to reliably submit a PR with the modification for Arista's review I'll need an example ACCESS_INFO.yaml file.
😎 (Bogus data as long as it is formatted the same as an actual file is sufficient. Please 😁)

Could one of the Arista team please share the format of /etc/atd/ACCESS_INFO.yaml?

Describe alternatives you've considered
One option is to parse with awk and pipe that to cut, but it may be possible to perform with just awk.
PROJECT=$(awk '/project/{print $1}' /etc/atd/ACCESS_INFO.yaml | cut -d':' -f2)

I'm open to other suggestions.

Additional context
(What was done here isn't wrong, but does pipe through several commands. I'd like to hack on it to try and make a shorter expression.)

atd-public/nested-labvm/atd-docker/nginx/src/atd-certs.sh

Line 3 in d399b6c

PROJECT=$(cut -d':' -f2 <<<$(grep project /etc/atd/ACCESS_INFO.yaml) | awk '{print $1}')

[mjbear]

Note: In the past I submitted similar awk expression enhancements to aristanetworks/avd-workshops#152