Update actions/upload-artifact & actions/download-artifact actions to v4 (#395)

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

Author: renovate[bot]

.github/workflows/build.yml

@@ -23,7 +23,7 @@ jobs:
         run: .\build.ps1
         shell: powershell
       - name: Publish NuGet package as build artifact
-        uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32 # v3
+        uses: actions/upload-artifact@c7d193f32edcb7bfad88892161225aeda64e9392 # v4
         with:
           name: NuGet Package
           path: ./BuildArtifacts/Packages/NuGet/
@@ -39,7 +39,7 @@ jobs:
         run: npm install -g markdownlint-cli
         shell: powershell
       - name: Download build artifact
-        uses: actions/download-artifact@9bc31d5ccc31df68ecc42ccf4149144866c47d8a # v3
+        uses: actions/download-artifact@7a1cd3216ca9260cd8022db641d960b1db4d1be4 # v4
         with:
           name: NuGet Package
           path: ./BuildArtifacts/Packages/NuGet
@@ -53,7 +53,7 @@ jobs:
         working-directory: ./tests/script-runner/
         shell: powershell
       - name: Publish generated reports as build artifact
-        uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32 # v3
+        uses: actions/upload-artifact@c7d193f32edcb7bfad88892161225aeda64e9392 # v4
         with:
           name: Integration Tests Script Runner Windows (.NET Core tool)
           path: ./tests/script-runner/BuildArtifacts/output/