chore: upgrade to dotnet 8 in github workflows

Author: Per Kops

.github/workflows/atc-coding-rules-update.yml

@@ -24,7 +24,7 @@ jobs:
     - name: '⚙ Install ATC Coding Rules updater'
       run: dotnet tool install --global atc-coding-rules-updater
     - name: ♻️ Run ATC Coding Rules updater
-      run: atc-coding-rules-updater run --projectPath . --verbose --projectTarget DotNet6 --useTemporarySuppressions
+      run: atc-coding-rules-updater run --projectPath . --verbose --projectTarget DotNet8 --useTemporarySuppressions
     - name: 🐛 Git - show changes
       shell: bash
       run: |

.github/workflows/post-integration.yml

@@ -30,10 +30,10 @@ jobs:
         with:
           setAllVars: true
 
-      - name: ⚙️ Setup dotnet 6.0.x
+      - name: ⚙️ Setup dotnet 8.0.x
         uses: actions/setup-dotnet@v1
         with:
-          dotnet-version: '6.0.x'
+          dotnet-version: '8.0.x'
 
       - name: ⚙️ Set up JDK 17
         uses: actions/setup-java@v3

.github/workflows/pre-integration.yml

@@ -19,10 +19,10 @@ jobs:
         with:
           fetch-depth: 0
 
-      - name: ⚙️ Setup dotnet 6.0.x
+      - name: ⚙️ Setup dotnet 8.0.x
         uses: actions/setup-dotnet@v1
         with:
-          dotnet-version: '6.0.x'
+          dotnet-version: '8.0.x'
 
       - name: 🧹 Clean
         run: dotnet clean -c Release && dotnet nuget locals all --clear
@@ -43,10 +43,10 @@ jobs:
         with:
           fetch-depth: 0
 
-      - name: ⚙️ Setup dotnet 6.0.x
+      - name: ⚙️ Setup dotnet 8.0.x
         uses: actions/setup-dotnet@v1
         with:
-          dotnet-version: '6.0.x'
+          dotnet-version: '8.0.x'
 
       - name: 🔁 Restore packages
         run: dotnet restore

.github/workflows/release.yml

@@ -27,10 +27,10 @@ jobs:
         with:
           setAllVars: true
 
-      - name: ⚙️ Setup dotnet 6.0.x
+      - name: ⚙️ Setup dotnet 8.0.x
         uses: actions/setup-dotnet@v1
         with:
-          dotnet-version: '6.0.x'
+          dotnet-version: '8.0.x'
 
       - name: 🧹 Clean
         run: dotnet clean -c Release && dotnet nuget locals all --clear