SNOW-2084165: Update str(ex_info) to str(ex_info.value) for better string checks

[sfc-gh-aalam]

1. Which Jira issue is this PR addressing? Make sure that there is an accompanying issue to your PR.

   Fixes SNOW-2084165

2. Fill out the following pre-review checklist:

   • I am adding a new automated test(s) to verify correctness of my new code
     • If this test skips Local Testing mode, I'm requesting review from @snowflakedb/local-testing
   • I am adding new logging messages
   • I am adding a new telemetry message
   • I am adding new credentials
   • I am adding a new dependency
   • If this is a new feature/behavior, I'm adding the Local Testing parity changes.
   • I acknowledge that I have ensured my changes to be thread-safe. Follow the link for more information: Thread-safe Developer Guidelines
   • If adding any arguments to public Snowpark APIs or creating new public Snowpark APIs, I acknowledge that I have ensured my changes include AST support. Follow the link for more information: AST Support Guidelines

3. Please describe how your code solves the related issue.

   This PR is split up from SNOW-2084165 Add dataframe operation lineage on SnowparkSQLException #3339

   str(ex_info) compresses the error using ... and some of the expected string in string matching gets hidden into the .... We make these updates to find the expected string in the full error string.

example str(ex_info) output

<ExceptionInfo SnowparkSQLException('snowflake.snowpark.exceptions.SnowparkSQLException: (1304): 01bc4ee1-0a10-0849-000c-a909c7a27113...s/snowpark-python/tests/integ/test_function.py|787:9-787:52:  session.create_dataframe([4], schema=["a"])', None, None) tblen=2>

example str(ex_info.value) output

snowflake.snowpark.exceptions.SnowparkSQLException: (1304): 01bc4ee1-0a10-0849-000c-a909c7a27113: 100044 (22P01): Invalid floating point operation: sqrt(-1)


--- Additional Debug Information ---


Trace of the dataframe operations that could have caused the error (total 2):

/Users/aalam/Projects/snowpark-python/tests/integ/test_function.py|793:8-793:32:  df.select(sqrt(lit(-1))).collec
/Users/aalam/Projects/snowpark-python/tests/integ/test_function.py|787:9-787:52:  session.create_dataframe([4], schema=["a"])

[sfc-gh-snowflakedb-snyk-sa]

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[sfc-gh-helmeleegy]

This seems useful. Thanks for working on this.