Bump ReportGenerator from 5.4.7 to 5.4.18 (#1081)

---
updated-dependencies:
- dependency-name: ReportGenerator
  dependency-version: 5.4.18
  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>

Author: dependabot[bot]

Directory.Packages.props

@@ -14,7 +14,7 @@
     <PackageVersion Include="NSubstitute" Version="5.3.0" />
     <PackageVersion Include="Polly.Core" Version="8.5.2" />
     <PackageVersion Include="Refit" Version="8.0.0" />
-    <PackageVersion Include="ReportGenerator" Version="5.4.7" />
+    <PackageVersion Include="ReportGenerator" Version="5.4.18" />
     <PackageVersion Include="Shouldly" Version="4.3.0" />
     <PackageVersion Include="StyleCop.Analyzers" Version="1.2.0-beta.556" />
     <PackageVersion Include="System.Net.Http" Version="4.3.4" />