[nspcc-dev/nspcc-infra#840]: Add DCO check

[aprasolova]

Signed-off-by: anastasia prasolova [email protected]

[codecov[bot]]

Codecov Report

Merging #2711 (2093bf8) into master (29564bd) will increase coverage by 0.10%. The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2711      +/-   ##
==========================================
+ Coverage   85.37%   85.47%   +0.10%     
==========================================
  Files         322      322              
  Lines       39705    39705              
==========================================
+ Hits        33899    33939      +40     
+ Misses       4476     4436      -40     
  Partials     1330     1330              

Impacted Files	Coverage Δ
pkg/services/notary/notary.go	82.68% <0.00%> (+0.59%)	:arrow_up:
pkg/core/transaction/transaction.go	86.66% <0.00%> (+1.48%)	:arrow_up:
pkg/network/message.go	96.26% <0.00%> (+2.23%)	:arrow_up:
pkg/services/oracle/request.go	63.18% <0.00%> (+5.00%)	:arrow_up:
pkg/services/oracle/oracle.go	87.59% <0.00%> (+14.59%)	:arrow_up:

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[realloc]

I'm sure we do need it for legal reasons.

[AnnaShaleva]

@roman-khimov, let's merge this one also since we've agreed to add DCO to our commits.