remove unnecessary just installs from testing workflow

Author: bckohan

.github/workflows/test.yml

@@ -68,7 +68,6 @@ jobs:
         PYTHON_PATH: ${{ steps.sp.outputs.python-path }}
       run: |
         just setup "$PYTHON_PATH"
-        just install
     - name: Run Unit Tests
       run: |
         just test
@@ -124,7 +123,6 @@ jobs:
         PYTHON_PATH: ${{ steps.sp.outputs.python-path }}
       run: |
         just setup "$PYTHON_PATH"
-        just install
     - name: Run Unit Tests
       run: |
         just test
@@ -178,7 +176,6 @@ jobs:
         PYTHON_PATH: ${{ steps.sp.outputs.python-path }}
       run: |
         just setup "$env:PYTHON_PATH"
-        just install
     - name: Run Unit Tests
       run: |
         just test
@@ -213,7 +210,6 @@ jobs:
           PYTHON_PATH: ${{ steps.sp.outputs.python-path }}
         run: |
           just setup "$PYTHON_PATH"
-          just install
 
       - name: Get coverage files
         uses: actions/download-artifact@37930b1c2abaa49bbe596cd826c3c89aef350131