71 update CI actions (#72)

Author: mknaranja

.github/actions/build/action.yml

@@ -23,7 +23,7 @@ runs:
       run: |
         tar -czf build.tar.gz build
     - name: Upload build dir archive
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: build-cpp-linux-gmgpolar
         path: build.tar.gz

.github/actions/test/action.yml

@@ -15,7 +15,7 @@ runs:
         sudo apt-get -qq -y install lcov
         sudo apt-get -qq update  
     - name: Download build test directory
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
         name: ${{ inputs.build-artifact }}
     - name: extract build archive
@@ -37,14 +37,14 @@ runs:
         cd build
         cmake --build . --target coverage/fast
     - name: Upload test report
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: test-report
         path: build/tests/testreport.xml
         if-no-files-found: error
         retention-days: 3
     - name: Upload coverage reports
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: test-coverage-reports
         path: |