fix: use the locally downloaded image instead of defaulting to the la…

[math411]

…test from the ECR repo

docker run -i -v /var/run/docker.sock:/var/run/docker.sock -e "IMAGE_NAME=public.ecr.aws/codebuild/amazonlinux2-x86_64-standard:3.0" -e "ARTIFACTS=/home/runner/work/amazon-braket-examples/amazon-braket-examples/envs" -e "SOURCE=/home/runner/work/amazon-braket-examples/amazon-braket-examples" -e "BUILDSPEC=/home/runner/work/amazon-braket-examples/amazon-braket-examples/nbi/buildspec.yml" -e "INITIATOR=runner" public.ecr.aws/codebuild/local-builds:latest

Current behavior does not set the image to use (-l) so we fall back to pulling a new image

Issue #, if available:

Description of changes:

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