Bump Valleysoft.DockerCredsProvider from 1.2.0 to 2.1.0 (#219)

Bumps [Valleysoft.DockerCredsProvider](https://github.com/mthalman/docker-creds-provider) from 1.2.0 to 2.1.0.
- [Release notes](https://github.com/mthalman/docker-creds-provider/releases)
- [Commits](mthalman/docker-creds-provider@1.2.0...v2.1.0)

---
updated-dependencies:
- dependency-name: Valleysoft.DockerCredsProvider
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

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

Author: dependabot[bot]

Directory.Packages.props

@@ -14,6 +14,6 @@
         <PackageVersion Include="GitHubActionsTestLogger" Version="2.0.1" />
         <PackageVersion Include="System.CommandLine" Version="2.0.0-beta4.22272.1" />
         <PackageVersion Include="Microsoft.Build.Locator" Version="1.5.5" />
-	    <PackageVersion Include="Valleysoft.DockerCredsProvider" Version="1.2.0" />
+	    <PackageVersion Include="Valleysoft.DockerCredsProvider" Version="2.1.0" />
     </ItemGroup>
 </Project>