update adal4j dependency to version 1.2.0

[xiangyushawn]

for issue #390

[codecov-io]

Codecov Report

Merging #392 into dev will decrease coverage by <.01%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##                dev     #392      +/-   ##
============================================
- Coverage     40.08%   40.07%   -0.01%     
+ Complexity     1888     1886       -2     
============================================
  Files           107      107              
  Lines         24483    24483              
  Branches       4038     4038              
============================================
- Hits           9814     9812       -2     
- Misses        12829    12831       +2     
  Partials       1840     1840

Flag	Coverage Δ	Complexity Δ
#JDBC41	39.95% <ø> (ø)	1880 <ø> (+3)	⬆️
#JDBC42	39.97% <ø> (-0.03%)	1881 <ø> (-2)

Impacted Files	Coverage Δ	Complexity Δ
...m/microsoft/sqlserver/jdbc/SQLServerStatement.java	59.06% <0%> (-0.31%)	129% <0%> (-1%)
...rc/main/java/com/microsoft/sqlserver/jdbc/dtv.java	39.59% <0%> (-0.07%)	0% <0%> (ø)
...in/java/com/microsoft/sqlserver/jdbc/IOBuffer.java	44.75% <0%> (-0.04%)	0% <0%> (ø)
...om/microsoft/sqlserver/jdbc/SQLServerBulkCopy.java	49.28% <0%> (+0.07%)	210% <0%> (-1%)	⬇️
...om/microsoft/sqlserver/jdbc/ReaderInputStream.java	47.19% <0%> (+2.24%)	16% <0%> (ø)	⬇️

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