feat(databricks): normalize column names

[atzoum]

Description

The default behaviour of databricks is to return column names case sensitive when one queries the information schema, even though it treats them as case insensitive in sql statements.
For table names, databricks behaviour is different, it stores them in lowercase.
So, by default, table names are returned normalized by databricks, whereas column names are not.
To avoid this inconsistency, we are now normalizing column names as default behaviour.

Users who wish to avoid this behavioural change, they can set the SkipColumnNormalization configuration flag to true.

Linear Ticket

resolves PRO-3980

Security

• The code changed/added as part of this pull request won't create any security issues with how the software is being used.

[codecov]

Codecov Report

Attention: Patch coverage is 92.30769% with 6 lines in your changes missing coverage. Please review.

Project coverage is 85.69%. Comparing base (a582787) to head (e3d52d0).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
sqlconnect/internal/databricks/tableadmin.go	64.70%	4 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #241      +/-   ##
==========================================
+ Coverage   85.51%   85.69%   +0.17%     
==========================================
  Files          88       88              
  Lines        4494     4571      +77     
==========================================
+ Hits         3843     3917      +74     
- Misses        495      497       +2     
- Partials      156      157       +1     

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