Move setup-dotnet out of compile action

and bump dotnet version to 8.0 nominal, with tests on 7 and 9

Author: drewcassidy

.github/actions/compile/action.yml

@@ -10,10 +10,6 @@ inputs:
     default: Release
     description: The project configuration to build.
 
-  dotnet-version:
-    default: 5.x
-    description: Version of dotnet compiler to use.  Defaults to 5.x.
-
   ksp-zip-url:
     default: https://github.com/KSPModdingLibs/KSPLibs/raw/main/KSP-1.12.5.zip
     description: >
@@ -61,11 +57,6 @@ runs:
       shell: bash
       run: echo 'KSP_ROOT=${{ '/tmp/ksp' }}' >> "$GITHUB_ENV"
 
-    - name: Setup .NET
-      uses: actions/setup-dotnet@v4
-      with:
-        dotnet-version: ${{ inputs.dotnet-version }}
-
     - name: Download KSP Libs
       shell: bash
       run: |

.github/workflows/build.yml

@@ -28,6 +28,10 @@ on:
         description: >
           Set to true if your project uses a packages.config file instead of packagereferences. This will cause the job 
           to run on the Ubuntu-22.04 image instead of Ubuntu-24.04
+      dotnet-version:
+        type: string
+        default: 8.x
+        description: Version of dotnet compiler to use.
       use-ckan:
         type: boolean
         default: false
@@ -50,6 +54,11 @@ jobs:
         with:
           submodules: true
 
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: ${{ inputs.dotnet-version }}
+
       # Install CKAN and set up an instance
       - uses: KSPModdingLibs/KSPBuildTools/.github/actions/setup-ckan@0.0.4
         if: ${{ (inputs.use-ckan && inputs.use-msbuild) || inputs.dependency-identifiers }}

.github/workflows/internal-test-plugin-legacy.yml

@@ -12,6 +12,11 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: '8.x'
 
       - uses: ./.github/actions/setup-ckan
 

.github/workflows/internal-test-plugin-nuget.yml

@@ -17,15 +17,15 @@ jobs:
   build:
     strategy:
       matrix:
-        dotnet-version: [ 5.x, 7.x, 9.x ]
+        dotnet-version: [ 7.x, 8.x, 9.x ]
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4
 
       - name: Setup .NET
         uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: 8.0.x
+          dotnet-version: ${{ matrix.dotnet-version }}
 
       - name: Setup Nuget Package Sources
         run: |
@@ -44,7 +44,6 @@ jobs:
           ksp-zip-url: https://github.com/KSPModdingLibs/KSPLibs/raw/main/KSP-1.12.5.zip
           working-directory: ${{ env.TESTDIR }}
           solution-file-path: plugin-mod-nuget.csproj
-          dotnet-version: ${{ matrix.dotnet-version }}
         env:
           KSPBuildToolsVersion: ${{ inputs.package-version }}
 

.github/workflows/internal-test-plugin.yml

@@ -12,6 +12,11 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: '8.x'
 
       - uses: ./.github/actions/setup-ckan