Updated .NET Github Actions

- Use .NET setup v3
- Removed staging action
- Cache packages

.github/workflows/dotnet.yml

@@ -10,6 +10,8 @@ jobs:
         timeout-minutes: 15
         continue-on-error: true
         runs-on: ${{ matrix.platforms }}
+        env:
+            NUGET_PACKAGES: ${{ github.workspace }}/.nuget/packages
         strategy:
             matrix:
                 dotnet: ["6.0.x"]
@@ -17,7 +19,7 @@ jobs:
         steps:
             - uses: actions/checkout@v2
             - name: Setup .NET
-              uses: actions/setup-dotnet@v1
+              uses: actions/setup-dotnet@v3
               with:
                   dotnet-version: ${{ matrix.dotnet }}
             - name: Install dependencies

.github/workflows/publish.yml

@@ -7,10 +7,12 @@ jobs:
   publish:
     name: Package Release
     runs-on: ubuntu-latest
+    env:
+        NUGET_PACKAGES: ${{ github.workspace }}/.nuget/packages
     steps:
       - uses: actions/checkout@v2
       - name: Setup dotnet
-        uses: actions/setup-dotnet@v1
+        uses: actions/setup-dotnet@v3
         with:
           dotnet-version: "6.0.x"
       - name: Install dependencies

.github/workflows/staging.yml

@@ -1,24 +0,0 @@
-name: Publish Testing Package
-on:
-  push:
-    branches:
-      - "staging/**"
-jobs:
-  publish:
-    name: Package Release
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - name: Setup dotnet
-        uses: actions/setup-dotnet@v1
-        with:
-          dotnet-version: "6.0.x"
-      - name: Install dependencies
-        run: dotnet restore
-      - name: Package
-        run: dotnet pack --no-restore -o .
-      - name: Publish to Nuget
-        env:
-          NUGET_KEY: ${{ secrets.DEPLOY_TEST_KEY }}
-          NUGET_API: https://apiint.nugettest.org/v3/index.json
-        run: dotnet nuget push CSTNet.*.nupkg --api-key $NUGET_KEY --source $NUGET_API