Post construct interceptor missing an invocation context parameter

[manovotn]

The org.jboss.cdi.tck.interceptors.tests.contract.lifecycleCallback.SheepInterceptor declares a @PostConstruct method which violates interceptor spec requirements.

Namely in this section, the following is stated:

Lifecycle callback interceptor methods declared in an interceptor class or superclass of an interceptor class must have one of the following signatures:

• void <METHOD>(InvocationContext)
• Object (InvocationContext)

Here is a link to the current method declaration which lacks the InvocationContext parameter.

The only test using this interceptor asserts that this callback does not get invoked which is probably why it didn't get noticed earlier.

EDIT: I intentionally didn't mark the issue as a challenge but if we encounter an impl having issues with it, it is certainly an option.
After some though, I added the challenge label.

[Ladicek]

This is a tiny issue that I believe can't negatively affect anyone, so we can just fix it directly.