Remove coverage badge step, upload coverage as artifact

Removed the workflow step that generated a code coverage badge.
Added a new step to upload the coverage report as an artifact
for easier access and download. This change simplifies the
workflow by no longer updating a badge and instead providing
the raw coverage data.

Author: vb2ae

.github/workflows/dotnet.yml

@@ -62,15 +62,6 @@ jobs:
     - name: Run Tests with Coverage
       run: dotnet test --collect:"XPlat Code Coverage" --results-directory ./coverage
 
-    - name: Generate Coverage Badge
-      uses: simon-k/dotnet-code-coverage-badge@v1.0.0
-      with:
-        path: coverage/**/coverage.opencover.xml
-        label: Code Coverage
-        color: brightgreen
-        gist-filename: code-coverage.json
-        gist-id: ${{ secrets.GIST_ID }}
-        gist-auth-token: ${{ secrets.GIST_AUTH_TOKEN }}
     - name: Pack Nuget
       run: dotnet pack ClientNoSqlDB/ClientNoSqlDB.csproj --configuration Release 
     - name: publish Nuget Packages to GitHub
@@ -81,3 +72,9 @@ jobs:
       with:
         name: published_nuget
         path: ClientNoSqlDB/bin/Release/*.nupkg
+    - name: Upload Code Coverage Artifact
+      uses: actions/upload-artifact@v4
+      with:
+        name: code_coverage
+        path: coverage/**/coverage.opencover.xml
+