Bump tests/drivers-evergreen-tools from a0d9612 to 4e18803 (#1636)

Bumps [tests/drivers-evergreen-tools](https://github.com/mongodb-labs/drivers-evergreen-tools) from `a0d9612` to `4e18803`.
- [Commits](mongodb-labs/drivers-evergreen-tools@a0d9612...4e18803)

---
updated-dependencies:
- dependency-name: tests/drivers-evergreen-tools
  dependency-type: direct:production
...

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