ci: upgrade pipelines to .NET 9

Author: perkops

.github/workflows/post-integration.yml

@@ -30,10 +30,10 @@ jobs:
         with:
           setAllVars: true
 
-      - name: ⚙️ Setup dotnet 8.0.x
+      - name: ⚙️ Setup dotnet 9.0.x
         uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: '8.0.x'
+          dotnet-version: '9.0.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 8.0.x
+      - name: ⚙️ Setup dotnet 9.0.x
         uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: '8.0.x'
+          dotnet-version: '9.0.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 8.0.x
+      - name: ⚙️ Setup dotnet 9.0.x
         uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: '8.0.x'
+          dotnet-version: '9.0.x'
 
       - name: 🔁 Restore packages
         run: dotnet restore

.github/workflows/release.yml

@@ -27,10 +27,10 @@ jobs:
         with:
           setAllVars: true
 
-      - name: ⚙️ Setup dotnet 8.0.x
+      - name: ⚙️ Setup dotnet 9.0.x
         uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: '8.0.x'
+          dotnet-version: '9.0.x'
 
       - name: 🧹 Clean
         run: dotnet clean -c Release && dotnet nuget locals all --clear