Bump to .net 8 and Fable 4.27

.config/dotnet-tools.json

@@ -9,7 +9,7 @@
       ]
     },
     "fable": {
-      "version": "3.0.0-nagareyama-rc-004",
+      "version": "4.27.0",
       "commands": [
         "fable"
       ]

.github/workflows/dotnetcore.yml

@@ -16,6 +16,6 @@ jobs:
     - name: Setup .NET Core
       uses: actions/setup-dotnet@v1
       with:
-        dotnet-version: 3.1.101
+        dotnet-version: 8.x
     - name: Build with dotnet
       run: ./build.sh

.github/workflows/fable.yml

@@ -16,13 +16,11 @@ jobs:
     - name: Setup .NET Core
       uses: actions/setup-dotnet@v1
       with:
-        dotnet-version: 3.1.101
+        dotnet-version: 8.x
     - name: Restore tools
       run: dotnet tool restore
     - name: Use Node.js
-      uses: actions/setup-node@v1
-      with:
-        node-version: '15.x'
+      uses: actions/setup-node@v5
     - name: Install npm dependencies
       run: npm install
     - name: Run Fable tests

global.json

@@ -1,6 +1,6 @@
 {
   "sdk": {
-    "version": "3.0.103",
+    "version": "8.0.0",
     "rollForward": "latestMinor"
   }
 }