Update actions/checkout action to v5 (#609)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/build.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: windows-2025
     steps:
       - name: Get the sources
-        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
       - name: Fetch all tags and branches
         run: git fetch --prune --unshallow
       - name: Install .NET
@@ -33,7 +33,7 @@ jobs:
     runs-on: windows-2025
     steps:
       - name: Get the sources
-        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
       - name: Install required tools
         run: npm install -g markdownlint-cli
         shell: powershell

.github/workflows/copilot-setup-steps.yml

@@ -24,7 +24,7 @@ jobs:
     # Defined steps will run before the agent starts.
     steps:
       - name: Checkout code
-        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
       - name: Fetch all tags and branches
         run: git fetch --prune --unshallow
       - name: Install .NET