Make sure all stable versions are available for build/test

Author: kzu

.github/workflows/build.yml

@@ -64,6 +64,14 @@ jobs:
           submodules: recursive
           fetch-depth: 0
 
+      - name: ⚙ dotnet
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: |
+            6.x
+            8.x
+            9.x
+
       - name: 🙏 build
         run: dotnet build -m:1 -bl:build.binlog
 
@@ -79,11 +87,6 @@ jobs:
           name: logs
           path: '*.binlog'
 
-      - name: ⚙ dotnet
-        uses: actions/setup-dotnet@v4
-        with:
-          dotnet-version: 9.x
-
       - name: 🚀 sleet
         env:
           SLEET_CONNECTION: ${{ secrets.SLEET_CONNECTION }}

.github/workflows/publish.yml

@@ -26,6 +26,14 @@ jobs:
           submodules: recursive
           fetch-depth: 0
 
+      - name: ⚙ dotnet
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: |
+            6.x
+            8.x
+            9.x
+
       - name: 🙏 build
         run: dotnet build -m:1 -bl:build.binlog
 
@@ -48,11 +56,6 @@ jobs:
         working-directory: bin
         run: dotnet nuget push *.nupkg -s https://api.nuget.org/v3/index.json -k ${{secrets.NUGET_API_KEY}} --skip-duplicate
 
-      - name: ⚙ dotnet
-        uses: actions/setup-dotnet@v4
-        with:
-          dotnet-version: 9.x
-
       - name: 🚀 sleet
         env:
           SLEET_CONNECTION: ${{ secrets.SLEET_CONNECTION }}