feat: fast no-sync write support

[jansimonb]

Proposed Changes

Support fast writes without waiting for WAL persistence:

• New write option (WriteOptions.noSync) added: true value means faster write but without the confirmation that
  the data was persisted. Default value: false.
• Supported by self-managed InfluxDB 3 Core and Enterprise servers only!
• Also configurable via connection string query parameter (writeNoSync).
• Also configurable via environment variable (INFLUX_WRITE_NO_SYNC).
• Long precision string values added from v3 HTTP API: "nanosecond", "microsecond", "millisecond", "second" (in addition to the existing "ns", "us", "ms", "s").

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 87.87879% with 8 lines in your changes missing coverage. Please review.

Project coverage is 90.10%. Comparing base (069e805) to head (8cb49f5).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...luxdb/v3/client/write/WritePrecisionConverter.java	66.66%	2 Missing and 2 partials ⚠️
...ava/com/influxdb/v3/client/write/WriteOptions.java	89.47%	0 Missing and 2 partials ⚠️
...va/com/influxdb/v3/client/config/ClientConfig.java	92.30%	0 Missing and 1 partial ⚠️
...nfluxdb/v3/client/internal/InfluxDBClientImpl.java	95.45%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #238      +/-   ##
==========================================
- Coverage   90.19%   90.10%   -0.09%     
==========================================
  Files          19       20       +1     
  Lines        1142     1193      +51     
  Branches      178      187       +9     
==========================================
+ Hits         1030     1075      +45     
  Misses         41       41              
- Partials       71       77       +6     

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[karel-rehor]

Tests all pass locally. Changes make sense. 🚴 🏁