Bump Verify.ImageMagick from 3.8.6 to 3.8.7 (#589)

---
updated-dependencies:
- dependency-name: Verify.ImageMagick
  dependency-version: 3.8.7
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

src/Directory.Packages.props

@@ -24,7 +24,7 @@
     <PackageVersion Include="Verify" Version="31.13.5" />
     <PackageVersion Include="Verify.CommunityToolkit.Mvvm" Version="1.1.0" />
     <PackageVersion Include="Verify.DiffPlex" Version="3.1.2" />
-    <PackageVersion Include="Verify.ImageMagick" Version="3.8.6" />
+    <PackageVersion Include="Verify.ImageMagick" Version="3.8.7" />
     <PackageVersion Include="Verify.NUnit" Version="31.13.5" />
     <PackageVersion Include="Verify.XunitV3" Version="31.13.5" />
     <PackageVersion Include="xunit.v3" Version="3.2.2" />