Reverse jobstats HTTP param behavior

[RDruon]

Reverse the behavior of the "jobstats" HTTP param.

[root@node1 ~]# curl -s -G http://localhost:32221/metrics | grep jobid | wc -l
0
[root@node1 ~]# curl -s -G http://localhost:32221/metrics -d "jobstats" | grep jobid | wc -l
0
[root@node1 ~]# curl -s -G http://localhost:32221/metrics -d "jobstats=any" | grep jobid | wc -l
0
[root@node1 ~]# curl -s -G http://localhost:32221/metrics -d "jobstats=true" | grep jobid | wc -l
66

0 means no jobstats are shown/processed

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.71%. Comparing base (fbb9f54) to head (3080e6a).

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #78      +/-   ##
==========================================
- Coverage   91.73%   91.71%   -0.03%     
==========================================
  Files          41       41              
  Lines        5228     5225       -3     
  Branches     5228     5225       -3     
==========================================
- Hits         4796     4792       -4     
+ Misses        397      394       -3     
- Partials       35       39       +4     

Flag	Coverage Δ
2_14_0_ddn133	35.26% <ø> (ø)
2_14_0_ddn145	36.01% <ø> (ø)
all-tests	91.71% <ø> (-0.03%)	⬇️

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[github-actions]

Benchmark for 4a23da2

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Test	Base	PR	%
jobstats 100	4.6±0.88ms	4.6±0.80ms	0.00%
jobstats 1000	42.9±6.97ms	43.8±7.56ms	+2.10%

[jgrund]

Suggested change

	#[serde(default = "default_as_false")]
	#[serde(default)]

Default is false.

[github-actions]

Benchmark for 533b77d

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Test	Base	PR	%
jobstats 100	4.3±0.71ms	4.5±0.86ms	+4.65%
jobstats 1000	43.8±8.10ms	45.0±7.89ms	+2.74%

[github-actions]

Benchmark for 0873f33

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Test	Base	PR	%
jobstats 100	4.3±0.73ms	4.3±0.70ms	0.00%
jobstats 1000	41.1±6.08ms	41.4±5.50ms	+0.73%