Different if/else structure for windows tests

Author: swansonk14

.github/workflows/tests.yml

@@ -24,12 +24,13 @@ jobs:
       uses: actions/setup-python@v2
       with:
         python-version: ${{ matrix.python-version }}
+    - name: Set temp directories on Windows
+      if: matrix.os == 'windows-latest'
+      run: |
+        echo "TMP=$env:USERPROFILE\AppData\Local\Temp" >> $env:GITHUB_ENV
+        echo "TEMP=$env:USERPROFILE\AppData\Local\Temp" >> $env:GITHUB_ENV
     - name: Install dependencies
       run: |
-        if [ "$RUNNER_OS" == "Windows" ]; then
-          echo "TMP=$env:USERPROFILE\AppData\Local\Temp" >> $env:GITHUB_ENV
-          echo "TEMP=$env:USERPROFILE\AppData\Local\Temp" >> $env:GITHUB_ENV
-        fi
         git config --global user.email "[email protected]"
         git config --global user.name "Your Name"
         python -m pip install --upgrade pip