Honor updater suspension in Create animations

[puneetdixit200]

Fixes #4763

Overview: What does this pull request change?

Create and other ShowPartial animations now pass dt=0 when updating their starting-copy mobject while suspend_mobject_updating=True. The original mobject was already suspended, but the starting copy could still receive elapsed time and feed updater-applied geometry back through interpolation.

Motivation and Explanation: Why and how do your changes improve the library?

This makes Create(mobject, suspend_mobject_updating=True) honor time-based updater suspension without breaking existing side-effect updater behavior covered by graphical updater tests. A non-rendering regression compares Create on a dot with a time-based updater against the same Create on a control dot.

AI assistance was used while drafting this patch; I reviewed the diff and verified the results below.

Tests

• UV_CACHE_DIR=/tmp/manim-4763-uv-cache UV_PROJECT_ENVIRONMENT=/tmp/manim-4763-venv uv run pytest tests/module/animation/test_creation.py::test_create_suspends_mobject_updaters -q
• UV_CACHE_DIR=/tmp/manim-4763-uv-cache UV_PROJECT_ENVIRONMENT=/tmp/manim-4763-venv uv run pytest tests/test_graphical_units/test_updaters.py::test_UpdateSceneDuringAnimation -q
• UV_CACHE_DIR=/tmp/manim-4763-uv-cache UV_PROJECT_ENVIRONMENT=/tmp/manim-4763-venv uv run pytest tests/module/animation/test_creation.py -q
• UV_CACHE_DIR=/tmp/manim-4763-uv-cache UV_PROJECT_ENVIRONMENT=/tmp/manim-4763-venv uv run ruff check manim/animation/creation.py tests/module/animation/test_creation.py
• UV_CACHE_DIR=/tmp/manim-4763-uv-cache UV_PROJECT_ENVIRONMENT=/tmp/manim-4763-venv uv run ruff format --check manim/animation/creation.py tests/module/animation/test_creation.py
• git diff --check