Lock simple-scrypt library to master branch

[fd0]

The master branch includes a fix for i386, otherwise the calibration panics. See #676 for details.

[codecov-io]

Codecov Report

Merging #1148 into master will increase coverage by 0.03%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1148      +/-   ##
==========================================
+ Coverage   52.71%   52.75%   +0.03%     
==========================================
  Files         122      122              
  Lines       11452    11452              
==========================================
+ Hits         6037     6041       +4     
+ Misses       4707     4704       -3     
+ Partials      708      707       -1

Impacted Files	Coverage Δ
internal/archiver/archiver.go	64.9% <0%> (+0.16%)	⬆️
internal/backend/test/tests.go	58.35% <0%> (+0.65%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 4477d76...41c35b2. Read the comment docs.