test: Add Jackson 3 test cases and version ambiguity warnings

Add JacksonizedAccessorsJackson3 test case verifying that @Jacksonized
with jacksonVersion=3 emits the correct annotations.

Add expected warning messages for tests that have both Jackson 2 and 3
on the classpath without explicit version configuration, and fix
JacksonizedSuperBuilderWithJsonDeserialize message expectations.

test/transform/resource/before/JacksonizedAccessorsJackson3.java

@@ -0,0 +1,10 @@
+//version 8: Jackson deps are at least Java7+.
+//CONF: lombok.jacksonized.jacksonVersion += 3
+@lombok.Data
+@lombok.experimental.Accessors(fluent = true)
+@lombok.extern.jackson.Jacksonized
+class JacksonizedAccessorsJackson3 {
+	private String name;
+	private int age;
+	private transient String password;
+}