try cache

.gitea/workflows/dotnetbuild_runner.yaml

@@ -8,6 +8,8 @@ jobs:
       matrix:
         dotnet-version: [ '8.0.x' ]
 
+    env:
+      NUGET_PACKAGES: ${{ github.workspace }}/.nuget/packages
     runs-on: ubuntu-latest
     steps:
 
@@ -23,9 +25,11 @@ jobs:
           echo "${{ vars.EXECUTABLE_NAME }}"
           echo "${{ vars.RUNTIME }}"
       - name: Setup dotnet
-        uses: actions/setup-dotnet@v3
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: ${{ matrix.dotnet-version }}
+          cache: true
+          cache-dependency-path: subdir/packages.lock.json
       - name: Install dependencies
         run: dotnet restore
       - name: Test with dotnet