Pin galaxy-tool-util-models to current minor version in dependents

galaxy-tool-util-models was listed as an unversioned dependency in
galaxy-schema, galaxy-tool-util, and galaxy-tool-shed-schema. This
caused pip to leave it at a stale version when upgrading an existing
virtualenv, because the already-installed version satisfied the loose
(unconstrained) requirement.

The symptom was ImportError failures at job execution time — e.g.:

  ImportError: cannot import name 'AnySafeValidatorModel' from
    'galaxy.tool_util_models.parameter_validators'

    — where galaxy-util (at the new version) referenced a symbol that
    didn't exist in the older galaxy-tool-util-models still present in
    the venv.

    Fix: add a >=26.0 lower bound in each dependent package so pip is
    forced to upgrade galaxy-tool-util-models when installing any of
    these packages at 26.0 or later.

    Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

packages/schema/setup.cfg

@@ -14,7 +14,7 @@ version = 26.0.2.dev0
 [options]
 include_package_data = True
 install_requires =
-    galaxy-tool-util-models
+    galaxy-tool-util-models>=26.0
     galaxy-util
     pydantic[email]>=2.7.4
 packages = find:

packages/tool_shed_schema/setup.cfg

@@ -14,7 +14,7 @@ version = 26.0.2.dev0
 [options]
 include_package_data = True
 install_requires =
-    galaxy-tool-util-models
+    galaxy-tool-util-models>=26.0
     pydantic>=2.7.4
     typing-extensions
 packages = find:

packages/tool_util/setup.cfg

@@ -14,7 +14,7 @@ version = 26.0.2.dev0
 [options]
 include_package_data = True
 install_requires =
-    galaxy-tool-util-models
+    galaxy-tool-util-models>=26.0
     galaxy-util[template,image-util]>=22.1
     conda-package-streaming
     lxml!=4.2.2