Fix file descriptor leak in Files.list method. Stream must be closed.

[dstuebe]

Bug Fix:

• Close Files.list stream which leaks open file descriptor if the stream is not closed.

[codecov-io]

Codecov Report

Merging #104 into master will increase coverage by 0.07%.
The diff coverage is 100%.

@@             Coverage Diff              @@
##             master     #104      +/-   ##
============================================
+ Coverage     89.65%   89.72%   +0.07%     
- Complexity      719      720       +1     
============================================
  Files            56       56              
  Lines          2677     2677              
  Branches        176      176              
============================================
+ Hits           2400     2402       +2     
+ Misses          192      191       -1     
+ Partials         85       84       -1

Impacted Files	Coverage Δ	Complexity Δ
src/main/java/com/upserve/uppend/FileStore.java	82.85% <100%> (ø)	37 <1> (ø)	⬇️
...ain/java/com/upserve/uppend/lookup/LookupData.java	96.07% <0%> (+0.71%)	86% <0%> (+1%)	⬆️

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