Bump QRCoder from 1.4.2 to 1.4.3 in /Google.Authenticator.Tests (#86)

Bumps [QRCoder](https://github.com/codebude/QRCoder) from 1.4.2 to 1.4.3.
- [Release notes](https://github.com/codebude/QRCoder/releases)
- [Commits](codebude/QRCoder@v1.4.2...v1.4.3)

---
updated-dependencies:
- dependency-name: QRCoder
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Google.Authenticator/Google.Authenticator.csproj

@@ -15,7 +15,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="QRCoder" Version="1.4.2" />
+    <PackageReference Include="QRCoder" Version="1.4.3" />
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.1" PrivateAssets="All" />
     <None Include="..\README.md" Pack="true" PackagePath="\"/>
   </ItemGroup>