[Backport-1.x] Generating US routing number (ABA RTN) in Finance provider (#821).

[polarfish]

Backport of #821 to 1_x

[codecov-commenter]

Codecov Report

Merging #823 (25e71f0) into 1.x (d9c2cc2) will increase coverage by 0.09%.
The diff coverage is 100.00%.

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@@             Coverage Diff              @@
##                1.x     #823      +/-   ##
============================================
+ Coverage     91.85%   91.94%   +0.09%     
- Complexity     2670     2674       +4     
============================================
  Files           287      287              
  Lines          5522     5536      +14     
  Branches        605      605              
============================================
+ Hits           5072     5090      +18     
+ Misses          291      290       -1     
+ Partials        159      156       -3     

Impacted Files	Coverage Δ
...ain/java/net/datafaker/providers/base/Finance.java	98.66% <100.00%> (+0.13%)	⬆️

... and 4 files with indirect coverage changes

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[bodiam]

Thanks! We'll release a new 1.x version soon!