chore: Use units release >= 0.7.0 (#4296)

This pull request includes updates to the dependency on `ansys-units`,
documentation, and new test coverage for physical quantities. The most
important changes involve updating the `ansys-units` version to ensure
compatibility and adding a new test to validate quantity dimensions.

### Dependency Updates:
* Updated the `ansys-units` dependency in `pyproject.toml` to require
version `>=0.7.0,<1.0` instead of `>=0.6.dev1,<1.0`. This ensures
compatibility with the latest stable release.

### Documentation Changes:
* Updated the changelog to reflect the requirement for `ansys-units`
version `>=0.8.dev0`.

### Test Additions:
* Added a new test, `test_quantity_dimensions_subscription`, in
`tests/test_physical_quantities.py` to validate the dimensions of the
`VELOCITY` variable from the `VariableCatalog`. This ensures correctness
in handling physical quantity dimensions.

---------

Co-authored-by: pyansys-ci-bot <[email protected]>

Author: hpohekar

doc/changelog.d/4296.maintenance.md

@@ -0,0 +1 @@
+Use units release >= 0.7.0

pyproject.toml

@@ -21,7 +21,7 @@ dependencies = [
     "ansys-api-fluent>=0.3.36",
     "ansys-platform-instancemanagement~=1.1",
     "ansys-tools-filetransfer>=0.1,<0.3",
-    "ansys-units>=0.6.dev1,<1.0",
+    "ansys-units>=0.7.0,<1.0",
     "defusedxml>=0.7.1",
     "deprecated>=1.2.18",
     "docker>=7.1.0",

tests/test_physical_quantities.py

@@ -177,3 +177,12 @@ def test_use_variable_catalog_offline():
     assert vector_data_symmetry.shape == (2018, 3)
     assert round(vector_data_symmetry[1009][0], 5) == 0.0023
     assert round(vector_data_symmetry[1009][1], 5) == 1.22311
+
+
+def test_quantity_dimensions_subscription():
+    from ansys.units.variable_descriptor import VariableCatalog as vc
+
+    vel = vc.VELOCITY
+    assert vel.name == "velocity"
+    assert vel.dimension["TIME"] == -1.0
+    assert vel.dimension["LENGTH"] == 1.0