Update actions/checkout action to v6.0.3 (#71)

Co-authored-by: dependencyupdates[bot] <218638057+dependencyupdates[bot]@users.noreply.github.com>

Author: dependencyupdates[bot]

.github/workflows/code-analysis.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v6.0.2
+        uses: actions/checkout@v6.0.3
       - name: Setup .NET SDK
         uses: actions/setup-dotnet@v5.3.0
         with:

.github/workflows/dependency-updates.yml

@@ -32,7 +32,7 @@ jobs:
           private-key: ${{ secrets.DEPENDENCY_UPDATES_PRIVATE_KEY }}
           owner: Particular
       - name: Checkout config
-        uses: actions/checkout@v6.0.2
+        uses: actions/checkout@v6.0.3
         with:
           repository: Particular/renovate-config
           token: ${{ steps.get-token.outputs.token}}

.github/workflows/nuget-audit.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v6.0.2
+        uses: actions/checkout@v6.0.3
       - name: Setup .NET SDK
         uses: actions/setup-dotnet@v5.3.0
         with: