fix: ParseJSONDataComponent prevent unnecessary array wrapping

[bhatsanket]

Summary: Prevent wrapping non-array inputs in arrays to ensure correct JSON parsing and filtering.

This PR addresses an issue where the ParseJSONDataComponent was always wrapping the input in an array, even if the input was not an array. This caused incorrect JSON parsing and filtering.
Changes
Modified the filter_data method to check if the input is a list before wrapping it.
If the input is not a list, it is processed as a single value.
If the input is a list, each item is processed separately.

Testing:
Run jq query - .

• input non array
  

output

• input array
  

output

[codspeed-hq]

CodSpeed Performance Report

Merging #4357 will degrade performances by 21.05%

_{Comparing bhatsanket:fix/ParseJSONDataComponent (4424571) with main (a107650)}

Summary

⚡ 3 improvements
❌ 1 regressions
✅ 11 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	main	bhatsanket:fix/ParseJSONDataComponent	Change
⚡	test_build_flow_from_request_data	780.3 ms	705.6 ms	+10.58%
❌	test_invalid_run_with_input_type_chat	14.6 ms	18.5 ms	-21.05%
⚡	test_successful_run_with_input_type_text	456 ms	378.9 ms	+20.34%
⚡	test_successful_run_with_output_type_any	455.2 ms	408.1 ms	+11.55%

[italojohnny]

Hi there! Hope you're doing well, and thanks for the PR!
Would you mind also correcting the following lines in the tests?

diff --git a/src/backend/tests/integration/components/helpers/test_parse_json_data.py b/src/backend/tests/integration/components/helpers/test_parse_json_data.py
index d0aff47ca..7b5a1c3ff 100644
--- a/src/backend/tests/integration/components/helpers/test_parse_json_data.py
+++ b/src/backend/tests/integration/components/helpers/test_parse_json_data.py
@@ -37,7 +37,7 @@ async def test_from_message():
         ParseJSONDataComponent,
         inputs={
             "input_value": ComponentInputHandle(clazz=ChatInput, inputs={}, output_name="message"),
-            "query": ".[0].key",
+            "query": ".key",
         },
         run_input="{'key':'value1'}",
     )
@@ -47,7 +47,7 @@ async def test_from_message():
         ParseJSONDataComponent,
         inputs={
             "input_value": ComponentInputHandle(clazz=ChatInput, inputs={}, output_name="message"),
-            "query": ".[0].key.[0].field2",
+            "query": ".key.[0].field2",
         },
         run_input='{"key":[{"field1": 1, "field2": 2}]}',
     )

https://github.com/bhatsanket/langflow-original/blob/557ee6884205eeb77103eace9f5f2babf47b02e7/src/backend/tests/integration/components/helpers/test_parse_json_data.py#L29

https://github.com/bhatsanket/langflow-original/blob/557ee6884205eeb77103eace9f5f2babf47b02e7/src/backend/tests/integration/components/helpers/test_parse_json_data.py#L50

[bhatsanket]

Hi there! Hope you're doing well, and thanks for the PR! Would you mind also correcting the following lines in the tests?

diff --git a/src/backend/tests/integration/components/helpers/test_parse_json_data.py b/src/backend/tests/integration/components/helpers/test_parse_json_data.py
index d0aff47ca..7b5a1c3ff 100644
--- a/src/backend/tests/integration/components/helpers/test_parse_json_data.py
+++ b/src/backend/tests/integration/components/helpers/test_parse_json_data.py
@@ -37,7 +37,7 @@ async def test_from_message():
         ParseJSONDataComponent,
         inputs={
             "input_value": ComponentInputHandle(clazz=ChatInput, inputs={}, output_name="message"),
-            "query": ".[0].key",
+            "query": ".key",
         },
         run_input="{'key':'value1'}",
     )
@@ -47,7 +47,7 @@ async def test_from_message():
         ParseJSONDataComponent,
         inputs={
             "input_value": ComponentInputHandle(clazz=ChatInput, inputs={}, output_name="message"),
-            "query": ".[0].key.[0].field2",
+            "query": ".key.[0].field2",
         },
         run_input='{"key":[{"field1": 1, "field2": 2}]}',
     )

https://github.com/bhatsanket/langflow-original/blob/557ee6884205eeb77103eace9f5f2babf47b02e7/src/backend/tests/integration/components/helpers/test_parse_json_data.py#L29

https://github.com/bhatsanket/langflow-original/blob/557ee6884205eeb77103eace9f5f2babf47b02e7/src/backend/tests/integration/components/helpers/test_parse_json_data.py#L50

@italojohnny Updated. Thnx!