requirements: update dill requirement from <0.3.9 to <0.3.10 (#3054)

Updates the requirements on [dill](https://github.com/uqfoundation/dill) to permit the latest version.
- [Release notes](https://github.com/uqfoundation/dill/releases)
- [Commits](uqfoundation/dill@dill-0.3.8...0.3.9)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements.txt

@@ -1,5 +1,5 @@
 beartype<0.20.0
-dill<0.3.9
+dill<0.3.10
 fastkde>=1.0.24, <1.0.31
 graph-scheduler>=1.2.1, <1.3.0
 graphviz<0.21.0