Update pooch requirement from <=v1.8.2 to <=1.9.0

Updates the requirements on [pooch](https://github.com/fatiando/pooch) to permit the latest version.
- [Release notes](https://github.com/fatiando/pooch/releases)
- [Changelog](https://github.com/fatiando/pooch/blob/main/doc/changes.rst)
- [Commits](fatiando/pooch@v0.1...v1.9.0)

---
updated-dependencies:
- dependency-name: pooch
  dependency-version: 1.9.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pyproject.toml

@@ -32,7 +32,7 @@ classifiers = [
 dependencies = [
     "numpy <= 2.4.2",
     "lxml <= 6.0.2",
-    "pooch <= v1.8.2",
+    "pooch <=1.9.0",
     "importlib-resources; python_version <= '3.8'",
     "importlib-metadata; python_version <= '3.8'"
 ]