[BUG] Cannot parse a json for keys that contain a colon (:) in the key name

[zwoabier]

Describe the bug
jsonpath_rw is able to parse keys that contain a colon (:) but the following line in the tb-gateway is preventing us from that.

thingsboard-gateway/thingsboard_gateway/tb_utility/tb_utility.py

Line 130 in ac453e9

expression_arr = findall(r'\$\{[${A-Za-z0-9. ^\]\[*_:]*\}', expression)

If we want to parse a key that is containing a special character like a colon we have to wrap the key in double quotes in mqtt.json config file like that
"value": "${params.\"switch:0\".aenergy.total}"
what will end in a sting like
${params."switch:0".aenergy.total}

But the above stiring does not match the regex that is passed to the findall method anymore due to the double quotes around the switch:0
The result is that the specified value regex will be set as the value itself. In my case '${params."switch:0".aenergy.total}' instead of the floating point value.

If we would add double quotes to the regex that would fix the issue like
expression_arr = findall(r'\$\{[${A-Za-z0-9. ^\]\[*_:"]*\}', expression)

Connector name (If bug in the some connector):
MQTT Connector (JSON Uplink Converter)

Error traceback (If available):

tb-gateway-1  | 2024-02-27 15:44:04 - |ERROR| - [json_mqtt_uplink_converter.py] - json_mqtt_uplink_converter - _convert_single_item - 101 - Error in converter, for config:
tb-gateway-1  | {"type": "json", "deviceNameTopicExpression": "(shelly.*?)(?=/)", "deviceTypeTopicExpression": "smart_meter", "timeout": 60000, "attributes": [{"value": "${src}", "key": "src", "type": "string"}, {"value": "${params.\"switch:0\".aenergy.total}", "key": "aenergy:total", "type": "string"}, {"value": "${params.\"switch:0\".aenergy.by_minute}", "key": "aenergy:by_minute", "type": "string"}], "timeseries": [{"value": "${params}", "key": "params", "type": "string"}, {"value": "${params.ts}", "key": "shelly_ts", "type": "int"}, {"value": "${params.\"switch:0\".aenergy.total}", "key": "aenergy:total", "type": "int"}, {"value": "${params.\"switch:0\".aenergy.by_minute}", "key": "aenergy:by_minute", "type": "int"}]}
tb-gateway-1  |  and message:
tb-gateway-1  | {'src': 'shellypro1pm-999988887777', 'dst': 'smartmeter/shellypro1pm-999988887777/events', 'method': 'NotifyStatus', 'params': {'ts': 1708948920.38, 'switch:0': {'id': 0, 'aenergy': {'by_minute': [1.0, 2.0, 3.0], 'minute_ts': 1708948919, 'total': 1.234}}}}
tb-gateway-1  |  could not convert string to float: '${params."switch:0".aenergy.total}'

Versions (please complete the following information):

• docker container
• Thingsboard IoT Gateway version 3.4.4

[github-actions]

Hi @zwoabier.
Thank you for your interest in ThingsBoard IoT Gateway.
Your issue was registered, please wait for response from engineer.

IOTGW-134