feat: add support for golang lambdas running under the provided.al2 runtime

[mfreeman451]

❯ GOOS=linux GOARCH=arm64 go build -tags lambda.norpc -o bootstrap main.go
❯ zip myFunction.zip bootstrap
  adding: bootstrap (deflated 46%)
❯ aws lambda create-function --function-name myFunction \
--runtime provided.al2 --handler bootstrap \
--architectures arm64 \
--role arn:aws:iam::313370:role/whataburger-lambda \
--zip-file fileb://myFunction.zip
❯

These build args will produce arm64 binaries, will run faster, and will leverage the updated and AWS preferred runtime for golang. The billing model changes slightly - the current runtime does not get billed for invocation time, whereas the new runtime will, but it AWS claims it is not really much of a difference since it is so much faster now.