Update ci workflow
fix(ecr): only set credentials if username & password if specified, refactor to use aws-sdk v3
ecr input to specify whether the given registry is ECR
ecr: switch implementation to use the AWS SDK
Update instructions for Google registry
fix(ecr): use ec2 instance credentials when no credentials are provided
dev: update workflow
Bump @actions/core from 1.5.0 to 1.6.0
Ubuntu 16.04 runner deprecated
Bump ansi-regex from 5.0.0 to 5.0.1
Bump tmpl from 1.0.4 to 1.0.5
Fix Dependabot labels
Bump @actions/core from 1.4.0 to 1.5.0
Add link to GitHub documentation