Fix to https://github.com/eclipse/kapua/pull/3801

[Coduz]

This PR fixes a small compilation error introduced with #3801

Related Issue
#3801

Description of the solution adopted
FIxed the type erasure

Screenshots
None

Any side note on the changes made
None

[codecov]

Codecov Report

Merging #3821 (329dbc8) into develop (3dfb95d) will decrease coverage by 1.62%.
The diff coverage is n/a.

❗ Current head 329dbc8 differs from pull request most recent head 59a2777. Consider uploading reports for the commit 59a2777 to get more accurate results

@@              Coverage Diff              @@
##             develop    #3821      +/-   ##
=============================================
- Coverage      22.28%   20.67%   -1.62%     
  Complexity         6        6              
=============================================
  Files           1880     1883       +3     
  Lines          35547    40101    +4554     
  Branches        2792     3839    +1047     
=============================================
+ Hits            7921     8289     +368     
- Misses         27314    31400    +4086     
- Partials         312      412     +100     

Impacted Files	Coverage Δ
...ua/client/gateway/kura/KuraBinaryPayloadCodec.java	100.00% <ø> (ø)
...lient/gateway/kura/KuraBirthCertificateModule.java	61.53% <ø> (ø)
...se/kapua/client/gateway/kura/internal/Metrics.java	98.55% <ø> (ø)
...ua/client/gateway/kura/proto/KuraPayloadProto.java	16.20% <ø> (ø)
...vice/call/message/kura/proto/KuraPayloadProto.java	0.00% <ø> (ø)
.../org/eclipse/kapua/kura/simulator/app/Request.java	0.00% <ø> (ø)
...a/org/eclipse/kapua/kura/simulator/app/Sender.java	0.00% <ø> (ø)
...pua/kura/simulator/app/data/PeriodicGenerator.java	61.40% <ø> (ø)
...ra/simulator/app/data/SimplePeriodicGenerator.java	0.00% <ø> (ø)
.../eclipse/kapua/kura/simulator/payload/Metrics.java	4.34% <ø> (ø)
... and 1 more