RetryTest.testClassLevelRetryMaxDuration margin for error is too tight

[Joseph-Cass]

https://github.com/eclipse/microprofile-fault-tolerance/blob/ab7b622b2f7cb6fde39aaa6871a382a9ae1a75f1/tck/src/main/java/org/eclipse/microprofile/fault/tolerance/tck/RetryTest.java#L195

The ServiceB() in the method has a 1000ms maxDuration, the default 200ms jitter, and a 100ms Thread.sleep between retries. This means in a worst case scenario the test only has 100ms (1000ms - (200ms + 100ms)*3) to deal with processing time, system writes, and server blips, before executing the minimum required 4 retries for the assert.