fix: parsing infinite numbers

[bednar]

Related to influxdata/influxdb-client-java#239

Proposed Changes

Fixed parsing Inf+ for histogram() function.

Response example

#group,false,false,true,true,true,true,true,true,true,true,false,false
#datatype,string,long,dateTime:RFC3339,dateTime:RFC3339,string,string,string,string,string,string,double,double
#default,_result,,,,,,,,,,,
,result,table,_start,_stop,_field,_measurement,language,license,name,owner,le,_value
,,0,2021-06-23T06:50:11.897825012Z,2021-06-25T06:50:11.897825012Z,stars,github_repository,C#,MIT License,influxdb-client-csharp,influxdata,0,0
,,0,2021-06-23T06:50:11.897825012Z,2021-06-25T06:50:11.897825012Z,stars,github_repository,C#,MIT License,influxdb-client-csharp,influxdata,10,0
,,0,2021-06-23T06:50:11.897825012Z,2021-06-25T06:50:11.897825012Z,stars,github_repository,C#,MIT License,influxdb-client-csharp,influxdata,20,0
,,0,2021-06-23T06:50:11.897825012Z,2021-06-25T06:50:11.897825012Z,stars,github_repository,C#,MIT License,influxdb-client-csharp,influxdata,30,0
,,0,2021-06-23T06:50:11.897825012Z,2021-06-25T06:50:11.897825012Z,stars,github_repository,C#,MIT License,influxdb-client-csharp,influxdata,40,0
,,0,2021-06-23T06:50:11.897825012Z,2021-06-25T06:50:11.897825012Z,stars,github_repository,C#,MIT License,influxdb-client-csharp,influxdata,50,0
,,0,2021-06-23T06:50:11.897825012Z,2021-06-25T06:50:11.897825012Z,stars,github_repository,C#,MIT License,influxdb-client-csharp,influxdata,60,0
,,0,2021-06-23T06:50:11.897825012Z,2021-06-25T06:50:11.897825012Z,stars,github_repository,C#,MIT License,influxdb-client-csharp,influxdata,70,0
,,0,2021-06-23T06:50:11.897825012Z,2021-06-25T06:50:11.897825012Z,stars,github_repository,C#,MIT License,influxdb-client-csharp,influxdata,80,0
,,0,2021-06-23T06:50:11.897825012Z,2021-06-25T06:50:11.897825012Z,stars,github_repository,C#,MIT License,influxdb-client-csharp,influxdata,90,0
,,0,2021-06-23T06:50:11.897825012Z,2021-06-25T06:50:11.897825012Z,stars,github_repository,C#,MIT License,influxdb-client-csharp,influxdata,+Inf,15

Checklist

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

[codecov-commenter]

Codecov Report

Merging #87 (0423704) into master (410e677) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master      #87   +/-   ##
=======================================
  Coverage   98.98%   98.98%           
=======================================
  Files          16       16           
  Lines         785      788    +3     
=======================================
+ Hits          777      780    +3     
  Misses          8        8           

Impacted Files	Coverage Δ
lib/influxdb2/client/flux_csv_parser.rb	100.00% <100.00%> (ø)

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