Add new conn-string synonyms for cross-driver alignment

[apoorvdeshmukh]

Description

Add 5 new connection string keyword synonyms for cross-driver alignment
Adds space-free and camelCase synonym mappings so that connection strings using keywords common across other SQL drivers (ODBC, OLEDB, JDBC, PHP, Python, Rust) are accepted by Microsoft.Data.SqlClient:

Canonical Keyword	New Synonym
Connect Timeout	ConnectTimeout
Failover Partner	FailoverPartner
Packet Size	PacketSize
Workstation ID	WorkstationID
Column Encryption Setting	columnEncryption

Issues

Fixes AB#44014

Testing

Added unit tests for the new synonyms

Guidelines

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• Contributing
• Code of Conduct
• Best Practices
• Coding Style
• Review Process

[Copilot]

Pull request overview

Adds additional connection string keyword synonyms so Microsoft.Data.SqlClient accepts space-free/camelCase keywords commonly used by other SQL drivers, improving cross-driver connection string portability.

Changes:

• Added new synonyms (ConnectTimeout, FailoverPartner, PacketSize, WorkstationID, columnEncryption) to the synonym constants and keyword-resolution maps.
• Updated SqlConnectionStringBuilder keyword dictionary to recognize the new synonyms.
• Added functional tests verifying the synonyms are accepted and resolve to the expected builder properties.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
src/Microsoft.Data.SqlClient/src/Microsoft/Data/Common/ConnectionString/DbConnectionStringSynonyms.cs	Adds constants for the 5 new synonym strings.
src/Microsoft.Data.SqlClient/src/Microsoft/Data/SqlClient/SqlConnectionStringBuilder.cs	Maps the new synonym constants to the correct Keywords entries for builder parsing.
src/Microsoft.Data.SqlClient/src/Microsoft/Data/SqlClient/SqlConnectionString.cs	Registers the new synonyms in the connection-string keyword map used when parsing SqlConnection connection strings.
src/Microsoft.Data.SqlClient/tests/FunctionalTests/SqlConnectionStringBuilderTest.cs	Adds coverage ensuring the new synonyms are accepted and map to the expected properties/values.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 64.77%. Comparing base (f5c41ee) to head (066fa8c).
⚠️ Report is 16 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4192      +/-   ##
==========================================
- Coverage   66.63%   64.77%   -1.86%     
==========================================
  Files         279      274       -5     
  Lines       42999    65825   +22826     
==========================================
+ Hits        28651    42637   +13986     
- Misses      14348    23188    +8840     

Flag	Coverage Δ
CI-SqlClient	?
PR-SqlClient-Project	64.77% <100.00%> (?)

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