firebase-functions issues

Adds auth.rawToken to context to allow access to the underlying token.

I've seen this request come through specifically for Genkit, but I think it applies generally -- there are some cases where a user might want to proxy calls to another...

mbleigh

Improve auth policy configuration for callable functions.

Implements [go/cf3-authPolicy-ext](http://goto.google.com/cf3-authPolicy-ext)

taeold

Fixed issue calling DataSnapshot methods with null data

4

### Description Fixes https://github.com/firebase/firebase-functions-test/pull/254 Fix is similar to the check in `#exists()`: https://github.com/firebase/firebase-functions/blob/5f7b331abd5a2a38a4e84de1e51411ea5919c0c3/src/common/providers/database.ts#L173

rhodgkins

Bump path-to-regexp and express

Bumps [path-to-regexp](https://github.com/pillarjs/path-to-regexp) to 0.1.12 and updates ancestor dependency [express](https://github.com/expressjs/express). These dependencies need to be updated together. Updates `path-to-regexp` from 0.1.10 to 0.1.12 Release notes Sourced from path-to-regexp's releases. Fix backtracking...

dependabot[bot]