Bump iqtree2 from cf47d36 to 07aa4b3

Bumps [iqtree2](https://github.com/iqtree/iqtree2) from `cf47d36` to `07aa4b3`.
- [Release notes](https://github.com/iqtree/iqtree2/releases)
- [Commits](iqtree/iqtree2@cf47d36...07aa4b3)

---
updated-dependencies:
- dependency-name: iqtree2
  dependency-type: direct:production
...

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