Update build-and-test.yml

Debug sed command

.github/workflows/build-and-test.yml

@@ -68,15 +68,12 @@ jobs:
       uses: actions/setup-python@v4
       with:
         python-version: '3.11'
-
-    - name: Print USERNAME and ACCESS_TOKEN for debugging (will be removed)
-      run: |
-        echo "USERNAME: ${{ env.USERNAME }}"
-        echo "ACCESS_TOKEN: ${{ secrets.ACCESS_TOKEN }}"
-      shell: bash
 
     - name: Replace requirements
-      run: sed -i~ "s/https:\/\/github\.com/https:\/\/${{ env.USERNAME }}:${{ secrets.ACCESS_TOKEN }}@github\.com/g" requirements-swmm.txt
+      env:
+        USERNAME: ${{ env.USERNAME }}
+        ACCESS_TOKEN: ${{ secrets.ACCESS_TOKEN }}
+      run: sed -i~ "s/https:\/\/github\.com/https:\/\/'$USERNAME':'$ACCESS_TOKEN'@github\.com/g" requirements-swmm.txt
       shell: bash
 
     - name: Install requirements