Update CI workflow test matrices for Python 3.10/3.14 and React 19, and install required test libraries in CI

[Copilot]

This updates workflow test coverage to match the requested runtime targets (Python 3.10, Python 3.14, and React 19) and fixes missing-library failures during CI test collection.

• Workflow matrix updates

  • Updated test job Python matrix from ["3.8", "3.12"] to ["3.10", "3.14"]
  • Updated test-react job React matrix from ["18.2.0"] to ["19"]

• Python library/testing setup

  • Kept requires-dev.txt on dash[ci,dev,testing]>=2.0
  • Updated both CI jobs to install requires-dev.txt during dependency setup so required test libraries (for example numpy and pandas) are available
  • Added an unreleased changelog entry describing the workflow/runtime updates and CI dependency install change

• Scope

  • Updated .github/workflows/python-test.yml
  • Updated CHANGELOG.md
  • No changes to application runtime code or component behavior

jobs:
  test:
    strategy:
      matrix:
        python-version: ["3.10", "3.14"]
    steps:
      - run: |
          source .venv/bin/activate
          uv pip install --upgrade pip
          uv pip install wheel
          uv pip install -r requires-dev.txt
          uv pip install ".[dev]"

  test-react:
    strategy:
      matrix:
        react-version: ["19"]
    steps:
      - run: |
          source .venv/bin/activate
          uv pip install --upgrade pip
          uv pip install wheel
          uv pip install -r requires-dev.txt
          uv pip install ".[dev]"

[BSd3v]

@copilot

Looks like we need some updates for the libraries in Python for 3.14 support and testing.

[Copilot]

@copilot

Looks like we need some updates for the libraries in Python for 3.14 support and testing.

Updated in commit 2096443.

I changed dev dependencies from dash[ci,dev,testing] to dash[dev,testing] in requires-dev.txt so the Python 3.14 workflow install path no longer pulls the problematic y-py/Jupyter CI chain, and added a changelog entry for this update.

[BSd3v]

@copilot

We need the ci... I guess drop the 3.14 to 3.13 instead.

[Copilot]

@copilot

We need the ci... I guess drop the 3.14 to 3.13 instead.

Done in 655f29c.

I switched the workflow Python matrix to 3.10/3.13, restored dash[ci,dev,testing] in requires-dev.txt, and updated the changelog entry to match.

[BSd3v]

@copilot

Go back to 3.14 and fix the issues for missing libraries, since 3.13 is also running into the same issue.

[Copilot]

@copilot

Go back to 3.14 and fix the issues for missing libraries, since 3.13 is also running into the same issue.

Done in bd0516a.

I restored the matrix to Python 3.10/3.14 and updated both CI install steps to include uv pip install -r requires-dev.txt so missing test libraries (like numpy/pandas) are installed.