ci: set DOTNET_INSTALL_DIR

Author: dansiegel

.github/workflows/build_uno.yml

@@ -19,14 +19,17 @@ on:
       - 'src/Uno/**'
       - 'tests/Uno/**'
 
+env:
+  DOTNET_INSTALL_DIR: ${{ github.workspace }}\.dotnet
+
 jobs:
   build-prism-uno:
     uses: avantipoint/workflow-templates/.github/workflows/msbuild-build.yml@master
     with:
       name: Build Prism.Uno
       solution-path: PrismLibrary_Uno.slnf
       windows-sdk-version: 18362
-      dotnet-version: 8.0.100
+      dotnet-version: 8.0.x
       uno-check: true
       uno-check-parameters: '--skip xcode --skip gtk3 --skip vswin --skip vsmac'
       run-tests: false

.github/workflows/ci.yml

@@ -16,6 +16,9 @@ on:
       - .github/workflows/ci.yml
   workflow_dispatch:
 
+env:
+  DOTNET_INSTALL_DIR: ${{ github.workspace }}\.dotnet
+
 jobs:
   build-prism-core:
     uses: avantipoint/workflow-templates/.github/workflows/dotnet-build.yml@master
@@ -66,7 +69,7 @@ jobs:
       name: Build Prism.Uno
       solution-path: PrismLibrary_Uno.slnf
       windows-sdk-version: 18362
-      dotnet-version: 8.0.100
+      dotnet-version: 8.0.x
       uno-check: true
       uno-check-parameters: '--skip xcode --skip gtk3 --skip vswin --skip vsmac'
       run-tests: false