fix(semver): bump lamda-http to 0.16.0 due to breaking change in dependency, aws_lambda_events (#1025)

Author: jlizen

lambda-http/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "lambda_http"
-version = "0.15.2"
+version = "0.16.0"
 authors = [
     "David Calavera <dcalaver@amazon.com>",
     "Harold Sun <sunhua@amazon.com>",