tpu-client-next: set connection retry value to 1 for first retry

[KirillLykov]

Problem

Fix bug with incorrect retry counter used for re-establishing connections.
This value is used like the follows:

                   ConnectionState::Retry(num_reconnects) => {
                        if *num_reconnects > self.max_reconnect_attempts {
                            error!(
                                "Failed to establish connection to {}: reached max reconnect \
                                 attempts",
                                self.peer
                            );
                            self.connection = ConnectionState::Closing;
                            continue;
                        }
                        sleep(RETRY_SLEEP_INTERVAL).await;
                        self.reconnect(*num_reconnects).await;
                    }

So if max_reconnect_attempts == 0 we get 0 > 0 and try reconnecting, which is not what expected.

Summary of Changes

[mergify]

Backports to the beta branch are to be avoided unless absolutely necessary for fixing bugs, security issues, and perf regressions. Changes intended for backport should be structured such that a minimum effective diff can be committed separately from any refactoring, plumbing, cleanup, etc that are not strictly necessary to achieve the goal. Any of the latter should go only into master and ride the normal stabilization schedule. Exceptions include CI/metrics changes, CLI improvements and documentation updates on a case by case basis.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 82.5%. Comparing base (4a04cba) to head (c1b1442).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##           master    #9581     +/-   ##
=========================================
- Coverage    82.5%    82.5%   -0.1%     
=========================================
  Files         901      901             
  Lines      323326   323326             
=========================================
- Hits       267043   267038      -5     
- Misses      56283    56288      +5     

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