Bump tomtoolkit from 2.25.2 to 2.26.0 in the dependencies group (#398)

Bumps the dependencies group with 1 update: [tomtoolkit](https://github.com/TOMToolkit/tom_base).


Updates `tomtoolkit` from 2.25.2 to 2.26.0
- [Release notes](https://github.com/TOMToolkit/tom_base/releases)
- [Commits](TOMToolkit/tom_base@2.25.2...2.26.0)

---
updated-dependencies:
- dependency-name: tomtoolkit
  dependency-version: 2.26.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dependencies
...

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

Author: dependabot[bot]

pyproject.toml

@@ -35,7 +35,7 @@ dependencies = [
     "marshmallow-jsonapi>=0.24.0",
     "numpydoc>=1.9.0,<2",
     "tom-tns>=0.3.1",
-    "tomtoolkit==2.25.2",
+    "tomtoolkit==2.26.0",
 ]
 version = "25.8.4"