build: update dotnet

.config/dotnet-tools.json

@@ -0,0 +1,18 @@
+{
+  "version": 1,
+  "isRoot": true,
+  "tools": {
+    "dotnet-format": {
+      "version": "4.0.40103",
+      "commands": [
+        "dotnet-format"
+      ]
+    },
+    "minicover": {
+      "version": "3.0.0",
+      "commands": [
+        "minicover"
+      ]
+    }
+  }
+}

.travis.yml

@@ -1,5 +1,5 @@
 language: csharp
-dotnet: '2.2.401'
+dotnet: '3.0.100'
 mono: none
 
 sudo: required
@@ -25,12 +25,12 @@ before_install:
   - sudo apt-get install -y powershell
 
 install:
-  - dotnet tool install -g dotnet-format --version 3.1.37601
+  - dotnet tool restore
   - pwsh ./ci/Install-Minikube.ps1 -MinikubeVersion v1.2.0 -KubernetesVersion v1.16.0
   - pwsh -c 'Install-Module -Force -Scope CurrentUser PSScriptAnalyzer'
 
 script:
-  - ~/.dotnet/tools/dotnet-format
+  - dotnet dotnet-format
   - pwsh -c 'Invoke-ScriptAnalyzer -EnableExit -Path . -Recurse -Settings PSScriptAnalyzerSettings.psd1 | Format-List -Property RuleName,Message,ScriptPath,Line,Column'
   - pwsh ./build.ps1
   - pwsh ./ci/Invoke-Tests.ps1

global.json

@@ -1,5 +1,5 @@
 {
   "sdk": {
-    "version": "2.2.401"
+    "version": "3.0.100"
   }
 }

src/PSKubectl.csproj

@@ -13,6 +13,5 @@
             <PrivateAssets>All</PrivateAssets>
         </PackageReference>
         <!-- <PackageReference Include="Serilog.Extensions.Logging.File" Version="1.1.0" /> -->
-        <DotNetCliToolReference Include="MiniCover" Version="2.0.0-ci-20180315091931" />
     </ItemGroup>
 </Project>