build(deps): bump mypy from 1.10.1 to 1.11.0 in /lib/spack/docs (#45337)

Bumps [mypy](https://github.com/python/mypy) from 1.10.1 to 1.11.0.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](https://github.com/python/mypy/compare/v1.10.1...v1.11)

---
updated-dependencies:
- dependency-name: mypy
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

lib/spack/docs/requirements.txt

@@ -10,4 +10,4 @@ pytest==8.2.2
 isort==5.13.2
 black==24.4.2
 flake8==7.1.0
-mypy==1.10.1
+mypy==1.11.0

lib/spack/spack/package_base.py

@@ -358,14 +358,12 @@ def on_package_attributes(**attr_dict):
     def _execute_under_condition(func):
         @functools.wraps(func)
         def _wrapper(instance, *args, **kwargs):
-            # Support both builders and packages
-            pkg = instance.pkg if isinstance(instance, spack.builder.Builder) else instance
             # If all the attributes have the value we require, then execute
-            has_all_attributes = all([hasattr(pkg, key) for key in attr_dict])
+            has_all_attributes = all([hasattr(instance, key) for key in attr_dict])
             if has_all_attributes:
                 has_the_right_values = all(
                     [
-                        getattr(pkg, key) == value for key, value in attr_dict.items()
+                        getattr(instance, key) == value for key, value in attr_dict.items()
                     ]  # NOQA: ignore=E501
                 )
                 if has_the_right_values: