Bump brace-expansion in /functions/testapp/functions

Bumps  and [brace-expansion](https://github.com/juliangruber/brace-expansion). These dependencies needed to be updated together.

Updates `brace-expansion` from 1.1.8 to 1.1.12
- [Release notes](https://github.com/juliangruber/brace-expansion/releases)
- [Commits](juliangruber/brace-expansion@v1.1.8...v1.1.12)

Updates `brace-expansion` from 1.1.11 to 1.1.12
- [Release notes](https://github.com/juliangruber/brace-expansion/releases)
- [Commits](juliangruber/brace-expansion@v1.1.8...v1.1.12)

---
updated-dependencies:
- dependency-name: brace-expansion
  dependency-version: 1.1.12
  dependency-type: indirect
- dependency-name: brace-expansion
  dependency-version: 1.1.12
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]