Additional environment pass-through in CI script

• CI script now passes CXXFLAGS to the builder

Pass aws credentials through to builder in CI script

• Updates the container CI script to pass AWS configuration environment variables into the builder via the environment

Container-based CI script

• upload a simple script for builder-based CI in containers on release

s2n import config fix

• Fixes an issue with the configuration of the s2n import which in turn caused the configuration not to be used

Php release fix

• Fixes an issue when tagging the release php containers

Linux flavor updates

• Adds host information for new linux flavors
• Ignore warnings when building s2n
• php image name fix broken by ecr migration pr

Migrate to ecr for all containers

• Moves all container tasks to ecr exclusively

New linux flavors

• New linux flavors: rhel8, fedora34, opensuse-leap
• hopefully fix release CD container push permission issue which should in turn fix previous ubuntu-arm-aarch64 failure

ubuntu arm64 + bug fixes

• Add ubuntu 20 arm64 image
• Minor bug fixes

Aarch64 image update

• Adds node to the manylinux aarch64 image