fix(snowflake): log check_query_output response via format string

[michaelneely]

Error:SnowflakeSqlApiHook.check_query_output logs the raw response dict, which violates StructuredLogMessage.event's str type.

This prevents logs from being displayed in the UI after a deferred SnowflakeSqlApiOperator finishes executing:

1 validation error for StructuredLogMessage
event
  Input should be a valid string [type=string_type, input_value={'resultSetMetaData': {'n...eatedOn': 1780320202371}, input_type=dict]
    For further information visit https://errors.pydantic.dev/2.13/v/string_type

Fix: Log the query response JSON in a templated string, matching the pattern used by other methods in the file.

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[henry3260]

Good catch