Bump actions/upload-artifact from 2.3.0 to 2.3.1

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 2.3.0 to 2.3.1.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v2.3.0...v2.3.1)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -37,7 +37,7 @@ jobs:
         run: dotnet build src --configuration Release
       - name: Upload packages
         if: matrix.name == 'Windows'
-        uses: actions/upload-artifact@v2.3.0
+        uses: actions/upload-artifact@v2.3.1
         with:
           name: NuGet packages
           path: nugets/

.github/workflows/release.yml

@@ -41,7 +41,7 @@ jobs:
           --azure-key-vault-certificate ${{ secrets.AZURE_KEY_VAULT_CERTIFICATE_NAME }}
         shell: pwsh
       - name: Publish artifacts
-        uses: actions/upload-artifact@v2.3.0
+        uses: actions/upload-artifact@v2.3.1
         with:
           name: nugets
           path: nugets/*
@@ -75,7 +75,7 @@ jobs:
           octo pack --id="${{env.PARTICULAR_REPO_NAME}}.Deploy" --version="${{env.GitVersion_SemVer}}" --format="nupkg" --basePath="packaging" --outFolder="octopus-package"
         shell: pwsh
       - name: Publish Octopus Package Artifacts
-        uses: actions/upload-artifact@v2.3.0
+        uses: actions/upload-artifact@v2.3.1
         with:
           name: octopus-package
           path: octopus-package/*