Added duplicateFileMode setting for maven plugin

[nvoxland]

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

Adds a maven-native flag for the liquibase.duplicateFileMode setting introduced in #3006

The config-level tag is <duplicateFileMode> and the global maven property to set is liquibase.duplicateFileMode

Fixes #3097

Things to be aware of

• Parsing of the value is case insensitive
• Invalid values should throw a parse value
• Applies to all maven commands that use a changelog (extends AbstractLiquibaseChangeLogMojo)

Things to worry about

• Nothing

[github-actions]

Unit Test Results

  4 620 files  ±0    4 620 suites  ±0   38m 22s ⏱️ + 4m 12s
  4 594 tests ±0    4 375 ✔️  - 4     219 💤 +4  0 ❌ ±0 
54 300 runs  ±0  49 276 ✔️  - 4  5 024 💤 +4  0 ❌ ±0 

Results for commit a768cd6. ± Comparison against base commit 28631d9.

♻️ This comment has been updated with latest results.

[nvoxland]

Code review and test results:

Things to be aware of:

• Needs manual testing still

Things to worry about:

• Nothing

[FBurguer]

For this PR I tested:
The config-level tag <duplicateFileMode> with WARN: PASS
The config-level tag <duplicateFileMode> with ERROR: PASS
Without the config-level tag <duplicateFileMode> (Needs to be ERROR by default): PASS
If you have a properties file with liquibase.duplicateFileMode and add the config-level tag <propertyFile> it doesnt read it. You can only set it as a config-level tag