Update crypto repo version

[iulianpascalau]

Description of the reasoning behind the pull request

• new crypto repo version
  https://github.com/ElrondNetwork/elrond-go-crypto/releases/tag/v1.2.1

Proposed Changes

• new crypto repo version

Testing procedure

• standard system tests

[codecov-commenter]

Codecov Report

Base: 71.16% // Head: 71.16% // Increases project coverage by +0.00% 🎉

Coverage data is based on head (1e30493) compared to base (c414b68).
Patch has no changes to coverable lines.

Additional details and impacted files

@@            Coverage Diff             @@
##           rc/v1.4.0    #4497   +/-   ##
==========================================
  Coverage      71.16%   71.16%           
==========================================
  Files            660      660           
  Lines          85848    85848           
==========================================
+ Hits           61096    61098    +2     
+ Misses         20261    20260    -1     
+ Partials        4491     4490    -1     

Impacted Files	Coverage Δ
p2p/libp2p/netMessenger.go	80.72% <0.00%> (ø)
common/pidQueue.go	96.66% <0.00%> (+3.33%)	⬆️

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[gabi-vuls]

System test passed.