fix pro commands in maven plugin

[StevenMassaro]

Impact

• Bug fix (non-breaking change which fixes expected existing functionality)
• Enhancement/New feature (adds functionality without impacting existing logic)
• Breaking change (fix or feature that would cause existing functionality to change)

Description

The jar split work changed the liquibase-core dependency to contain only open source code. This PR readds the pro code dependency for the maven plugin.

Things to be aware of

Things to worry about

Additional Context

#3050

[github-actions]

Unit Test Results

   385 files   -   4 235     385 suites   - 4 235   3m 30s ⏱️ - 28m 30s
4 492 tests  -      102  4 115 ✔️  -      264  377 💤 +   162  0 ❌ ±0 
4 525 runs   - 49 775  4 148 ✔️  - 45 132  377 💤  - 4 643  0 ❌ ±0 

Results for commit 6f49128. ± Comparison against base commit a2dde51.

[StevenMassaro]

This needs to be fixed, but I don't think this is the right way to fix it.