Release testing: Fix channel remove issue and channel exhaustion on reconnect

Proposed changes

During a reconnect fault the channels remain open and are quickly exhausted. Immediately close channels in Opening state similar to channels in Connecting state instead of waiting for timeout cleanup.
The channel concurrentDictionary sometimes failed to remove a channel.
```
ChannelId 1499: closed, but channel was not found.
```
Removing ContainsKey and retry with TryAdd fixes the problem.

Related Issues

Fixes #

Types of changes

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[x] Bugfix (non-breaking change which fixes an issue)
[ ] Enhancement (non-breaking change which adds functionality)
[ ] Test enhancement (non-breaking change to increase test coverage)
[ ] Breaking change (fix or feature that would cause existing functionality to not work as expected, requires version increase of Nuget packages)
[ ] Documentation Update (if none of the other choices apply)

Checklist

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[ ] I have read the CONTRIBUTING doc.
[ ] I have signed the CLA.
[ ] I ran tests locally with my changes, all passed.
[ ] I fixed all failing tests in the CI pipelines.
[ ] I fixed all introduced issues with CodeQL and LGTM.
[ ] I have added tests that prove my fix is effective or that my feature works and increased code coverage.
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Further comments

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Codecov Report

Attention: Patch coverage is 66.66667% with 17 lines in your changes missing coverage. Please review.

Project coverage is 54.63%. Comparing base (6833b91) to head (a160549).

Files with missing lines	Patch %	Lines
Stack/Opc.Ua.Core/Stack/Tcp/TcpListenerChannel.cs	8.33%	7 Missing and 4 partials :warning:
...tack/Opc.Ua.Core/Stack/Tcp/TcpTransportListener.cs	84.61%	5 Missing and 1 partial :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #2749 +/- ## ========================================== - Coverage 54.64% 54.63% -0.02% ========================================== Files 349 349 Lines 65689 65694 +5 Branches 13439 13440 +1 ========================================== - Hits 35899 35891 -8 - Misses 25893 25910 +17 + Partials 3897 3893 -4 ```

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OPCFoundation / UA-.NETStandard