Update workflow.

Author: Nihlus

.github/workflows/dotnet.yml

@@ -15,29 +15,46 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
       - uses: actions/setup-dotnet@v4
         with:
           dotnet-version: |
-            6.0.x
-            7.0.x
             8.0.x
+            9.0.x
 
       - name: Build
         run: |
           dotnet restore
           dotnet build -c Release --no-restore
 
       - name: Test
-        run: dotnet test -c Release --no-restore --no-build --verbosity minimal
+        run: dotnet test -c Release --no-restore --no-build --verbosity minimal --collect:"XPlat Code Coverage" --results-directory ./coverage
 
       - name: Inspect
-        uses: JetBrains/ReSharper-InspectCode@v0.3
+        uses: JetBrains/ReSharper-InspectCode@v0.8
         with:
-          tool-version: 2023.3.4
-          solution: Remora.Extensions.Options.Immutable.sln
+          tool-version: 2024.3.0
+          solution: Remora.Discord.sln
           build: false
           no-build: true
-          telemetry-optout: true
+
+      - name: Coverage
+        uses: irongut/CodeCoverageSummary@v1.3.0
+        with:
+          filename: coverage/**/coverage.cobertura.xml
+          badge: true
+          format: markdown
+          indicators: true
+          output: both
+          thresholds: '60 80'
+
+      - uses: actions/upload-artifact@v4
+        if: github.event_name == 'pull_request'
+        with:
+          name: coverage
+          path: code-coverage-results.md
 
       - name: Package
         if: github.ref == 'refs/heads/main' && github.event_name == 'push'