Use sys.all_objects for accurate function and procedure filtering

[muskan124947]

Description

This PR addresses GitHub reported issue : DatabaseMetadata.getProcedures and getFunctions return both functions and procedures #2690
Both DatabaseMetadata.getProcedures and DatabaseMetadata.getFunctions were returning a result set that included both stored procedures and functions, instead of filtering to return only the relevant object type for each method. This caused confusion, as users expect the results of each method to be exclusive to procedures or functions.

Currently, getFunctions() and getProcedures() both call the sp_stored_procedures. This issue originates from how the server handles sp_stored_procedures. It always returns the procedure type as 2 (sp-stored-procedures-transact-sql), regardless of whether the object is a function or a procedure.

Fix

The implementation has been updated so that getProcedures() and getFunctions() now use sys.all_objects to accurately filter database objects. Additionally, for procedures type is returned as 1 and 2 for functions.
Specifically, procedures are identified by object types

- 'P' (SQL stored procedure) 
- 'PC' (assembly stored procedure)

And functions are identified by

- 'FN' (SQL scalar function) 
- 'IF' (SQL inline table-valued function)
- 'TF' (SQL table-valued function)

This ensures that each method returns only the objects relevant to its purpose, resolving the confusion caused by the previous behavior.

Testing

Manual testing by creating scripts to validate objects (functions and procedures) obtained from getFunctions() and getProcedures() using sys.all_objects matches the result obtained from sp_stored_procedures. This testing was done locally

[codecov]

Codecov Report

❌ Patch coverage is 73.68421% with 10 lines in your changes missing coverage. Please review.
✅ Project coverage is 51.56%. Comparing base (44d6010) to head (867c2a8).
⚠️ Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
...soft/sqlserver/jdbc/SQLServerDatabaseMetaData.java	73.68%	3 Missing and 7 partials ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #2705      +/-   ##
============================================
- Coverage     51.60%   51.56%   -0.05%     
- Complexity     4083     4091       +8     
============================================
  Files           149      149              
  Lines         34242    34268      +26     
  Branches       5719     5725       +6     
============================================
- Hits          17672    17669       -3     
- Misses        14104    14127      +23     
- Partials       2466     2472       +6     

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[David-Engel]

Implementation looks good. Tests need a little tweaking, though. We don't need to print all that stuff to the logs.

[Ananya2]

PR approved. We can perform manual testing against a SQL DW instance using JDBC_DW.

Requested changes incorporated