Fix typo in deprecation suggestion

[ochikov]

Description:
Fix typo in the deprecation suggestion for PrivateKey::generate

Related issue(s):

Fixes #1341

Notes for reviewer:

Checklist

• Documented (Code comments, README, etc.)
• Tested (unit, integration, etc.)

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[codecov]

Codecov Report

Base: 83.54% // Head: 74.74% // Decreases project coverage by -8.79% ⚠️

Coverage data is based on head (cb0d37c) compared to base (dfc5c87).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1352      +/-   ##
===========================================
- Coverage    83.54%   74.74%   -8.80%     
===========================================
  Files          292      255      -37     
  Lines        72854    63798    -9056     
===========================================
- Hits         60864    47689   -13175     
- Misses       11990    16109    +4119     

Impacted Files	Coverage Δ
src/PrivateKey.js	92.09% <100.00%> (ø)
src/token/TokenInfo.js	21.55% <0.00%> (-61.78%)	⬇️
src/schedule/ScheduleInfo.js	26.61% <0.00%> (-58.56%)	⬇️
src/contract/ContractInfo.js	30.28% <0.00%> (-56.34%)	⬇️
src/network/AddressBookQuery.js	35.16% <0.00%> (-55.68%)	⬇️
src/account/TokenRelationship.js	39.86% <0.00%> (-53.15%)	⬇️
src/topic/TopicInfo.js	32.88% <0.00%> (-49.55%)	⬇️
src/file/FileInfo.js	45.45% <0.00%> (-42.86%)	⬇️
src/token/TokenMintTransaction.js	52.89% <0.00%> (-40.22%)	⬇️
src/contract/ContractCallQuery.js	46.68% <0.00%> (-37.76%)	⬇️
... and 129 more

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

☔ View full report at Codecov.
📢 Do you have feedback about the report comment? Let us know in this issue.