*: stop using deprecated getWorkflowById

This was deprectated because we don't have get*ById for other modules
and tools, we just use OFS API. This should also be slightly faster
because one less method call (and one less call to warning)
20 jobs for feat/radio-label
Status Job ID Name Coverage
  External
passed ERP5.CodingStyleTest-TestRunner1

07:46:01

failed ERP5.PerformanceTest-TestRunner1

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failed ERP5.UnitTest-TestRunner1

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passed ERP5.CodingStyleTest-TestRunner1

01:43:28

failed ERP5.CodingStyleTest-TestRunner1

failed ERP5.PerformanceTest-TestRunner1

00:00:13

failed ERP5.PerformanceTest-TestRunner1

00:00:14

failed ERP5.PerformanceTest-TestRunner1

00:00:13

passed ERP5.PerformanceTest-TestRunner1

00:27:49

failed ERP5.PerformanceTest-TestRunner1

00:51:06

failed ERP5.PerformanceTest-TestRunner1

00:00:12

failed ERP5.PerformanceTest-TestRunner1

00:00:15

failed ERP5.PerformanceTest-TestRunner1

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failed ERP5.PerformanceTest-TestRunner1

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failed ERP5.PerformanceTest-TestRunner1

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failed ERP5.PerformanceTest-TestRunner1

00:00:12

failed ERP5.PerformanceTest-TestRunner1

00:00:16

failed ERP5.PerformanceTest-TestRunner1

00:00:15

failed ERP5.UnitTest-TestRunner1

04:22:50

failed ERP5.UnitTest-TestRunner1