Update reportgenerator to v5.1.18

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
ReportGenerator	nuget	patch	5.1.17 -> 5.1.18
dotnet-reportgenerator-globaltool	nuget	patch	5.1.17 -> 5.1.18

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Release Notes

danielpalme/ReportGenerator

v5.1.18: ReportGenerator_5.1.18

This release requires .NET 4.7 or .NET Core 3.1/5.x/6.x/7.x.

Changes:

• Fix: #​590, #​591: Improved support for Cobertura files generated with dotnet test --collect "Code Coverage;Format=Cobertura"

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Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about these updates again.

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• If you want to rebase/retry this PR, check this box

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[codecov]

Codecov Report

Merging #942 (8d43429) into master (8d70098) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #942   +/-   ##
=======================================
  Coverage   72.32%   72.32%           
=======================================
  Files         255      255           
  Lines       12847    12847           
  Branches      817      817           
=======================================
  Hits         9292     9292           
  Misses       3555     3555           

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