Upgrade actions

Author: lsaudon

.github/workflows/docs.yml

@@ -18,9 +18,9 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Setup .NET Core
-        uses: actions/setup-dotnet@v1
+        uses: actions/setup-dotnet@v2
         with:
           dotnet-version: 6.0.302
       - name: Restore tools

.github/workflows/pr.yml

@@ -14,9 +14,9 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Setup .NET Core
-        uses: actions/setup-dotnet@v1
+        uses: actions/setup-dotnet@v2
         with:
           dotnet-version: 6.0.302
       - name: Restore tools