feat: upgrade for node.js v14+ compatibility

[sanyampandey-nitor]

• Added .npmignore
• Bumped up the major version
• Updated node engine restriction to >=10
• Updated "pg" dependency to ^8.7.1

[onel0p3z]

@sanyampandey-nitor what version of npm are you using? I just realized something I hadn't seen when I started reviewing these PRs: when I installed and linked locally to test, I see the lock file is updated. I wasn't expecting this so I checked and saw the following

I'm using npm@8.3.0

[onel0p3z]

GTG. Tested locally. No issues were observed.

[sanyampandey-nitor]

@sanyampandey-nitor what version of npm are you using? I just realized something I hadn't seen when I started reviewing these PRs: when I installed and linked locally to test, I see the lock file is updated. I wasn't expecting this so I checked and saw the following

I'm using npm@8.3.0

@onel0p3z AWS Beanstalk platform webpage shows latest supported version as -

Node.js versions (npm versions) - 14.18.3 (6.14.15)
These are the exact versions I have used on my dev environment.