Relaxes the requirement to have Golang 1.16 to run the conformance test GitHub Action to any version of Golang.

Add version input to the conformance test GitHub Action. This allows configuring GitHub Action to use a different conformance test (client) than the version number of the GitHub Action itself. See action/README.md for more information.

This correctly enables pinning to older conformance test standards when a Functions Framework has not implemented the newest standard.

Fix for Firebase RTDB event types

Add location support to Firebase RTDB events

Include publishedTime and messageId in CE payload

• fix: properly kill child processes on Windows
  • A previous commit didn't address Windows. Now process groups are killed properly on Linux, MacOS, and Windows.
• fix: override the expected converted Pub/Sub payload
  • There are multiple legacy Pub/Sub payload schemas. When converting CloudEvents to legacy events there is no information in the CE that enables us to infer which schema to convert to. The conformance test framework assumes the converted output will always match a corresponding unconverted payload, which isn't necessarily possible. There is now a mechanism to override the expected output when converting between event types.
• feat: add a workingDirectory option to run conformance tests in a subdirectory

fix: properly kill child processes

Add "subject" and "time" to the set of validated CloudEvent fields

Update Firebase Auth metadata timestamp mapping

• Fix #54, "Unable to distinguish between CloudEvent input and legacy input"
• Update PubSub, Cloud Storage, Firebase, and Firestore test data
• Remove Cloud Storage events that aren't supported as CloudEvents