Move to GenomicsDB 1.4.4

[nalinigans]

[codecov[bot]]

Codecov Report

Merging #7978 (1cc0354) into master (8d81423) will decrease coverage by 0.001%. The diff coverage is n/a.

@@               Coverage Diff               @@
##              master     #7978       +/-   ##
===============================================
- Coverage     86.679%   86.679%   -0.001%     
  Complexity     38455     38455               
===============================================
  Files           2310      2310               
  Lines         180387    180401       +14     
  Branches       19845     19848        +3     
===============================================
+ Hits          156358    156369       +11     
- Misses         17087     17088        +1     
- Partials        6942      6944        +2     

Impacted Files	Coverage Δ
...der/tools/walkers/mutect/Mutect3DatasetEngine.java	87.786% <0.000%> (-2.130%)	:arrow_down:
.../tools/walkers/mutect/SomaticGenotypingEngine.java	93.617% <0.000%> (-0.469%)	:arrow_down:
...der/tools/walkers/mutect/M2ArgumentCollection.java	95.000% <0.000%> (ø)
.../hellbender/utils/python/PythonUnitTestRunner.java	78.689% <0.000%> (+3.279%)	:arrow_up:

[lbergelson]

Wow, I thought I'd merged this one. Sorry.