Update FlywayFactory to support custom schema

[collado-mike]

Problem

There's currently no way to customize the marquez database to use a custom schema. This updates the FlywayFactory to support an argument to customize the schema programatically. This doesn't aim to support custom schemas from configuration.

Note: All database schema changes require discussion. Please link the issue for context.

Checklist

• You've signed-off your work
• Your changes are accompanied by tests (if relevant)
• Your change contains a small diff and is self-contained
• You've updated any relevant documentation (if relevant)
• You've updated the CHANGELOG.md with details about your change under the "Unreleased" section (if relevant, depending on the change, this may not be necessary)
• You've versioned your .sql database schema migration according to Flyway's naming convention (if relevant)
• You've included a header in any source code files (if relevant)

[codecov]

Codecov Report

Merging #2055 (1379bb3) into main (005b418) will increase coverage by 0.00%.
The diff coverage is 100.00%.

❗ Current head 1379bb3 differs from pull request most recent head 1e92e53. Consider uploading reports for the commit 1e92e53 to get more accurate results

@@            Coverage Diff            @@
##               main    #2055   +/-   ##
=========================================
  Coverage     78.79%   78.79%           
  Complexity     1011     1011           
=========================================
  Files           200      200           
  Lines          5573     5574    +1     
  Branches        422      422           
=========================================
+ Hits           4391     4392    +1     
  Misses          730      730           
  Partials        452      452           

Impacted Files	Coverage Δ
api/src/main/java/marquez/db/FlywayFactory.java	97.05% <100.00%> (+0.08%)	⬆️

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[wslulciuc]

LGTM 👍