Terratest build fixes

[denis256]

Description

Included changes:

• included and fixed Packer 1.10 images building from fix: handle updated packer version output from 1.10 #1380
• fixed tests for Helm charts
• fixed Packer SSH tests

TODOs

Read the Gruntwork contribution guidelines.

• Update the docs.
• Run the relevant tests successfully, including pre-commit checks.
• Ensure any 3rd party code adheres with our license policy or delete this line if its not applicable.
• Include release notes. If this PR is backward incompatible, include a migration guide.

Release Notes (draft)

Added / Removed / Updated [X].

Added support for Packer 1.10

Fixed Helm and Packer tests

Migration Guide

[yhakbar]

Did you mean to commit this file? It should be ignored. Please force push the removal of the file so that it's cleaned out of history if not intentional.

[denis256]

It is by intention, to deploy on new lambda runtime, executable should be named bootstrap

In the project directory that contains your application's main.go file, compile your executable. Note the following:
The executable must be named bootstrap. For more information, see Naming.

https://docs.aws.amazon.com/lambda/latest/dg/golang-package.html

[levkohimins]

LGTM!