Remove windows-2016 from GitHub workflows (#424)

Author: Takishima

.github/workflows/ci.yml

@@ -307,55 +307,3 @@ jobs:
 
     - name: Make SDist
       run: python3 setup.py sdist
-
-
-  win32-msvc2017:
-    name: "🐍 ${{ matrix.python }} • MSVC 2017 • x64"
-    runs-on: windows-2016
-    strategy:
-      fail-fast: false
-      matrix:
-        python:
-          - 3.6
-          - 3.7
-          - 3.8
-          - 3.9
-
-    steps:
-    - uses: actions/checkout@v2
-
-    - name: Get history and tags for SCM versioning to work
-      if: ${{ !env.ACT }}
-      run: |
-        git fetch --prune --unshallow
-        git fetch --depth=1 origin +refs/tags/*:refs/tags/*
-
-    - name: Get pip cache dir
-      id: pip-cache
-      run: |
-        echo "::set-output name=dir::$(python -m pip cache dir)"
-
-    - name: Cache wheels
-      uses: actions/cache@v2
-      with:
-        path: ${{ steps.pip-cache.outputs.dir }}
-        key: ${{ runner.os }}-${{ matrix.python }}-pip-${{ hashFiles('**/setup.cfg') }}
-        restore-keys: ${{ runner.os }}-${{ matrix.python }}-pip-
-
-    - name: Setup 🐍 ${{ matrix.python }}
-      uses: actions/setup-python@v2
-      with:
-        python-version: ${{ matrix.python }}
-
-    - name: Prepare env
-      run: |
-        python setup.py gen_reqfile --include-extras=test,braket
-        python -m pip install -r requirements.txt --prefer-binary
-
-    - name: Build and install package
-      run: python -m pip install -ve .[braket,test]
-
-    - name: Run all checks
-      run: |
-        echo 'backend: Agg' > matplotlibrc
-        python3 -m pytest -p no:warnings

CHANGELOG.md

@@ -25,6 +25,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Repository
 
 -   Add configuration for CIBuildWheel in `pyproject.toml`
+-   Remove use of deprecated images `windows-2016` in GitHub workflows
 -   Update `dangoslen/changelog-enforcer` GitHub action to v3
 -   Update `thomaseizinger/keep-a-changelog-new-release` GiHub action to v1.3.0
 -   Update `thomaseizinger/create-pull-request` GiHub action to v1.2.2