ci: Upgrade pipeline to support net8.0

Author: thygesteffensen

.github/workflows/build.yml

@@ -14,9 +14,9 @@ jobs:
       - name: Checkout code base
         uses: actions/checkout@v2
 
-      - uses: actions/setup-dotnet@v1
+      - uses: actions/setup-dotnet@v3
         with:
-          dotnet-version: '6.0.x'
+          dotnet-version: '8.0.x'
 
       - name: Cleaning
         run: dotnet clean

.github/workflows/release.yml

@@ -14,9 +14,9 @@ jobs:
       - name: Checkout repo
         uses: actions/checkout@v2
 
-      - uses: actions/setup-dotnet@v1
+      - uses: actions/setup-dotnet@v3
         with:
-          dotnet-version: '6.0.x'
+          dotnet-version: '8.0.x'
 
       - uses: actions/setup-node@v2
         with: