Bump set-value and union-value in /tools/clusterfuzz/js_fuzzer

Bumps [set-value](https://github.com/jonschlinkert/set-value) and [union-value](https://github.com/jonschlinkert/union-value). These dependencies needed to be updated together.

Updates `set-value` from 2.0.0 to 2.0.1
- [Release notes](https://github.com/jonschlinkert/set-value/releases)
- [Commits](jonschlinkert/set-value@2.0.0...2.0.1)

Updates `union-value` from 1.0.0 to 1.0.1
- [Release notes](https://github.com/jonschlinkert/union-value/releases)
- [Commits](jonschlinkert/union-value@1.0.0...1.0.1)

---
updated-dependencies:
- dependency-name: set-value
  dependency-type: indirect
- dependency-name: union-value
  dependency-type: indirect
...

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