[BUG] GetJsonObject throws exception when json path contains a name starting with '

[thirtiseven]

Describe the bug
$.'a is a valid path from Spark's check, so it is normalized to $[''a'] and passed to kernel in plugin, resulting in

ai.rapids.cudf.CudfException: CUDF failure on: /home/jenkins/agent/workspace/jenkins-spark-rapids-jni_nightly-dev-690-cuda11/thirdparty/cudf/cpp/src/json/json_path.cu:631: Invalid empty name in JSONPath query string

Note that $[''a'] is actually an invalid path from Spark's validation. So maybe the normalization we did in plugin b9c292c is losing some information when converting the List[PathInstruction] back to a string and causing some problems.

And at the same time, cuDF kernel can't match this case as well if we remove the normalization.

data: {"'a":"1"}

Spark, spark-rapids, cudf and jsonpath.com will give very different results in this case.

JSONPath	Spark	spark-rapids	cudf kernel(spark-rapids without normalization)	jsonpath.com
$[''a']	null	null	Invalid empty name in JSONPath query string	["1"]
$.'a	1	Invalid empty name in JSONPath query string	Encountered invalid JSONPath input string	No match

I think we can fallback on this case until we have a path parser that matches Spark's behavior.

[thirtiseven]

rapidsai/cudf#15082 looks to be contributing to fixing this issue, will update after it is included in the plugin.

[res-life]

Will be fixed by: NVIDIA/spark-rapids-jni#1868