chore(update-ruby-version): Ruby 2.5 will be EOL 7/30, updating to la…

…test tested ruby version to prevent deprecation (#1676)

Co-authored-by: Edward Malinowski <edwardmalinowski@Edwards-MacBook-Pro.local.cdis>

tf_files/aws/modules/alarms-lambda/lambda.tf

@@ -58,7 +58,7 @@ resource "aws_lambda_function" "lambda" {
   function_name    = "cloudwatch-lambda-${var.vpc_name}"
   role             = "${aws_iam_role.lambda_role.arn}"
   handler          = "lambda_function.processMessage"
-  runtime          = "ruby2.5"
+  runtime          = "ruby2.7"
   source_code_hash = "${data.archive_file.cloudwatch_lambda.output_base64sha256}"
   environment {
     variables = {