Add unit to @Timeout

[timtebeek]

Fixes #450

• junit4->5 rewrites @Test(1000 /*ms*/) to @Timeout(1000 /*sec*/) which breaks test logic #450

Quickest way to fix this is to add an explicit unit, since any division might lead to rounding errors.

We could also explore simplifying the durations as we do for AssertJ

rewrite-testing-frameworks/src/main/java/org/openrewrite/java/testing/assertj/AdoptAssertJDurationAssertions.java

Lines 165 to 203 in 24742fb

	private J.MethodInvocation simplifyTimeUnits(J.MethodInvocation m, ExecutionContext ctx) {
	Expression arg = m.getArguments().get(0);
	Long argValue = SimplifyDurationCreationUnits.getConstantIntegralValue(arg);
	if (argValue == null) {
	return m;
	}
	List<Object> unitInfo = getUnitInfo(m.getSimpleName(), Math.toIntExact(argValue));
	String methodName = (String) unitInfo.get(0);
	int methodArg = (int) unitInfo.get(1);
	if (!(m.getSimpleName().equals(methodName))) {
	// update method invocation with new name and arg
	String template = String.format("#{any()}.%s(%d)", methodName, methodArg);
	return applyTemplate(ctx, m, template, m.getSelect());
	}
	return m;
	}
	private static List<Object> getUnitInfo(String name, int argValue) {
	final int timeLength;
	if (name.equals("hasSeconds") || name.equals("hasMinutes")) {
	timeLength = 60;
	} else if (name.equals("hasNanos") || name.equals("hasMillis")) {
	timeLength = 1000;
	} else if (name.equals("hasHours")) {
	timeLength = 24;
	} else {
	return Arrays.asList(name, argValue);
	}
	if (argValue % timeLength == 0) {
	String newName = METHOD_MAP.get(name);
	return getUnitInfo(newName, argValue / timeLength);
	} else {
	// returning name, newArg
	return Arrays.asList(name, argValue);
	}
	}

But that's probably best done as a separate followup recipe such that we also pick up any existing tests.