Bump download-artifact@v2 to @v4 and format.

Author: nicolaswill

.github/workflows/run-codeql-unit-tests-cpp.yml

@@ -132,7 +132,7 @@ jobs:
 
 
       - name: Collect test results
-        uses: actions/download-artifact@v2
+        uses: actions/download-artifact@v4
 
       - name: Validate test results
         run: |

src/CodeQLToolkit.Features/Templates/Test/Actions/run-unit-tests.liquid

@@ -170,7 +170,7 @@ jobs:
 {% endif %}
 {% raw %}
       - name: Collect test results
-        uses: actions/download-artifact@v2
+        uses: actions/download-artifact@v4
 
       - name: Validate test results
         run: |