feat: named query parameters into API

[bednar]

Proposed Changes

This PR add supports for named parameters in the query API:

using var client = new InfluxDBClient("http://localhost:8086", token: "my-token", organization: "my-org", database: "my-database");

var results = client.QueryPoints(
    query: "SELECT a, b, c FROM my_table WHERE id = $id AND name = $name",
    namedParameters: new Dictionary<string, object> { { "id", 1 }, { "name", "test" } }
);

How looks like gRPC request to IOx: https://github.com/influxdata/influxdb_iox/blob/4aa8341cdd3d10c1b4ead723d0c2781e5fd8094d/service_grpc_flight/src/request.rs#L107

Checklist

• CHANGELOG.md updated
• Rebased/mergeable
• A test has been added if appropriate
• Tests pass
• Commit messages are conventional
• Sign CLA (if not already signed)

[codecov]

Codecov Report

Attention: Patch coverage is 97.87234% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 95.59%. Comparing base (cb5e4a8) to head (08d5a7e).

Files	Patch %	Lines
Client/Internal/FlightSqlClient.cs	97.14%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #71      +/-   ##
==========================================
+ Coverage   95.47%   95.59%   +0.11%     
==========================================
  Files          12       12              
  Lines        1017     1044      +27     
  Branches      127      130       +3     
==========================================
+ Hits          971      998      +27     
  Misses         11       11              
  Partials       35       35              

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[karel-rehor]

Tests pass. Examples work. Everything else looks OK.