Upgrade rsmq-async to version 8

[emmiegit]

The new version was announced in DavidBM/rsmq-async-rs#17. The main code change for our PR is changing integers (seconds) to std::time::Duration.

[codecov]

Codecov Report

Merging #1711 (a6fc802) into develop (2abfe6f) will increase coverage by 0.04%.
Report is 1 commits behind head on develop.
The diff coverage is 0.00%.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1711      +/-   ##
===========================================
+ Coverage    39.51%   39.56%   +0.04%     
===========================================
  Files          342      342              
  Lines        10980    10984       +4     
===========================================
+ Hits          4339     4346       +7     
+ Misses        6641     6638       -3     

Flag	Coverage Δ		*Carryforward flag
deepwell	2.01% <0.00%> (-0.02%)	⬇️
ftml	76.83% <ø> (+0.14%)	⬆️	Carriedforward from e623ac2

*This pull request uses carry forward flags. Click here to find out more.

Files	Coverage Δ
deepwell/src/config/object.rs	0.00% <ø> (ø)
deepwell/src/services/job/service.rs	0.00% <ø> (ø)
deepwell/src/redis.rs	0.00% <0.00%> (ø)
deepwell/src/config/file.rs	8.23% <0.00%> (-0.41%)	⬇️
deepwell/src/services/job/worker.rs	0.00% <0.00%> (ø)

... and 6 files with indirect coverage changes

[emmiegit]

thanks @Yossipossi1