feat: use HttpClient as a underlaying Http Service, major update

[bednar]

Related to #89
Closes #225
Closes #228
Closes #269
Closes #274

Proposed Changes

• Update to RestSharp v107
• Update dependencies
• The Query APIs uses CancellationToken instead of ICancellable
• The FluxClient uses IDisposable interface to releasing underlying HTTP connections
• Allow to set a client certificates
• Add CI check to compilation warnings
• Add CI check to correctness of code formatting
• Update QueryApi and WriteApi to be more C# like

For more info see CHANGELOG.md.

Checklist

• CHANGELOG.md updated
• Rebased/mergeable
• A test has been added if appropriate
• dotnet test completes successfully
• Commit messages are in semantic format
• Sign CLA (if not already signed)

[codecov-commenter]

Codecov Report

Merging #283 (ffbdc2d) into master (ec8daa2) will increase coverage by 4.16%.
The diff coverage is 95.42%.

@@            Coverage Diff             @@
##           master     #283      +/-   ##
==========================================
+ Coverage   84.88%   89.04%   +4.16%     
==========================================
  Files          73       73              
  Lines        6542     6237     -305     
==========================================
+ Hits         5553     5554       +1     
+ Misses        989      683     -306     

Impacted Files	Coverage Δ
Client.Core/Flux/Internal/AttributesCache.cs	100.00% <ø> (ø)
Client.Core/Internal/AbstractRestClient.cs	96.77% <ø> (ø)
Client.Legacy/FluxClientFactory.cs	100.00% <ø> (ø)
Client.Linq/IMemberNameResolver.cs	88.00% <ø> (ø)
Client.Linq/InfluxDBQueryable.cs	86.41% <0.00%> (-2.19%)	⬇️
...inq/Internal/Expressions/AbstractExpressionPart.cs	100.00% <ø> (ø)
...lient.Linq/Internal/Expressions/AssignmentValue.cs	100.00% <ø> (ø)
Client.Linq/Internal/Expressions/NamedField.cs	100.00% <ø> (ø)
...lient.Linq/Internal/Expressions/NamedFieldValue.cs	100.00% <ø> (ø)
Client.Linq/Internal/VariableAggregator.cs	96.42% <ø> (-0.13%)	⬇️
... and 43 more

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[rhajek]

LGTM