feat: update container definition including additional parameters to configure

[bryantbiggs]

Description

• Update module dependencies to latest; this is a no-op change when tested
• Update container definition to include additional parameters that are available by the module for those that are relevant to Fargate (allows for more configuration and flexibility)
• Add complete example with GitHub webhooks for testing as well as demonstrating module usage
• Update pre-commit to latest and remove validate (requires terraform init to be run prior on all workspaces/root directories)
• Update modules to support AWS provider 3.x and Terraform 0.13.x

Motivation and Context

• Primary motivation was to update the ECS container definition sub-module to allow for more flexibility and configuration as that module as advanced and evolved. This update exposes configurations for running containers/tasks more securely as well as taking advantage of the latest feature improvements to Fargate
• Closes Allow to specify ECS container ulimits #143 and Provide output of task_role_name #71 - supersedes fix: upgrade cloudposse/ecs-container-definition #131, add private docker repo authentication #103, and Allow specifying Atlantis command line #91

Breaking Changes

• None at this time

How Has This Been Tested?

1. I have an existing Atlantis module running in production on v2.20.0. Updating the source to point to this change request showed no updates to be made
2. There is now an example for testing/validation under examples/github-complete which includes both the Atlantis resources (including VPC and access logging bucket) as well as GitHub webhooks which also validated the changes when run anew

[DrFaust92]

some minor changes.

im able to provision thie module properly by atlantis doesnt start. i dont have time to go to much into looking into it at the moment.

BTW, on an unrelated note to PR it would be nice to have a guide on how to create the access token for github and what permissions are needed (hooks). i didnt see anything like this in the module.

[bryantbiggs]

@antonbabenko if you get a minute - the complete example works and I've tested this on 2 other existing deployments

[antonbabenko]

@bryantbiggs Thanks! I will proceed with this and several other PRs in the VPC and S3 modules where you have tagged me earlier on Monday.

[antonbabenko]

Thanks, @bryantbiggs !

v2.21.0 has been released.

PS: I used to make a new PR #148 because I can't push to your fork.

[antonbabenko]

Could you please close/update related issues/PRs you mentioned in this PR, too?

[github-actions]

I'm going to lock this pull request because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues. If you have found a problem that seems related to this change, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.