Add VACUUM for SQLiteAckQueue

[peter-wangxu]

fixes #78 #126 #107

[codecov]

Codecov Report

Merging #127 into master will increase coverage by 0.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #127      +/-   ##
==========================================
+ Coverage   95.48%   95.49%   +0.01%     
==========================================
  Files          15       15              
  Lines        1506     1510       +4     
  Branches      162      162              
==========================================
+ Hits         1438     1442       +4     
  Misses         47       47              
  Partials       21       21

Flag	Coverage Δ
#python	95.49% <100%> (+0.01%)	⬆️

Impacted Files	Coverage Δ
persistqueue/tests/test_sqlackqueue.py	100% <100%> (ø)	⬆️
persistqueue/sqlackqueue.py	96.36% <100%> (+0.06%)	⬆️

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