Update dependency Cake.Issues to v5.1.1 (#956)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

docs/mkdocs.yml

@@ -116,7 +116,7 @@ extra:
   # renovate: datasource=nuget depName=Cake.DocFx versioning=loose
   cake_docfx_version: 1.0.0
   # renovate: datasource=nuget depName=Cake.Issues versioning=loose
-  cake_issues_version: 5.1.0
+  cake_issues_version: 5.1.1
   # renovate: datasource=nuget depName=Cake.Markdownlint versioning=loose
   cake_markdownlint_version: 4.0.0
   # renovate: datasource=nuget depName=Cake.Git versioning=loose