* INT-4543: JacksonJsonObjectMapper: fix toJsonNode
JIRA: https://jira.spring.io/browse/INT-4543
When inbound payload is type of `String`, `byte[]`, `File`, `URL`,
`InputStream` or `Reader`, we have to use an `ObjectMapper.readTree()`
function.
For all other types the `valueToTree()` should be used as a fallback
**Cherry-pick to 5.0.x**
* * Fallback to the `valueToTree()` if not valid JSON
* * Fallback to `valueToTree()` only for `String` and `byte[]`
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