Bumped version of Snake Yaml from 1.15 to 1.28 - CVE-2017-18640 - CWE-189

[Coduz]

This PR bumps the version of Snake YAML from 1.15 to 1.28.

Related Issue
None

Description of the solution adopted
Bumped the version.

CQ filed: 23168

Screenshots
None

Any side note on the changes made
None

[codecov]

Codecov Report

Merging #3275 (e51fbc6) into develop (3eefc99) will decrease coverage by 26.03%.
The diff coverage is n/a.

@@              Coverage Diff               @@
##             develop    #3275       +/-   ##
==============================================
- Coverage      51.47%   25.43%   -26.04%     
+ Complexity       764      657      -107     
==============================================
  Files           1467     1467               
  Lines          29943    29943               
  Branches        2504     2504               
==============================================
- Hits           15414     7617     -7797     
- Misses         13657    21724     +8067     
+ Partials         872      602      -270     

Impacted Files	Coverage Δ	Complexity Δ
...rc/main/java/org/eclipse/kapua/KapuaException.java	0.00% <0.00%> (-100.00%)	0.00% <0.00%> (ø%)
...c/main/java/org/eclipse/kapua/KapuaErrorCodes.java	0.00% <0.00%> (-100.00%)	0.00% <0.00%> (ø%)
...in/java/org/eclipse/kapua/broker/BrokerDomain.java	0.00% <0.00%> (-100.00%)	0.00% <0.00%> (ø%)
...ain/java/org/eclipse/kapua/event/ServiceEvent.java	0.00% <0.00%> (-100.00%)	0.00% <0.00%> (ø%)
...n/java/org/eclipse/kapua/broker/BrokerDomains.java	0.00% <0.00%> (-100.00%)	0.00% <0.00%> (ø%)
...va/org/eclipse/kapua/commons/util/SystemUtils.java	0.00% <0.00%> (-100.00%)	0.00% <0.00%> (ø%)
...n/java/org/eclipse/kapua/model/domain/Actions.java	0.00% <0.00%> (-100.00%)	0.00% <0.00%> (ø%)
.../java/org/eclipse/kapua/message/KapuaPosition.java	0.00% <0.00%> (-100.00%)	0.00% <0.00%> (ø%)
.../java/org/eclipse/kapua/KapuaRuntimeException.java	0.00% <0.00%> (-100.00%)	0.00% <0.00%> (ø%)
.../java/org/eclipse/kapua/model/query/SortOrder.java	0.00% <0.00%> (-100.00%)	0.00% <0.00%> (ø%)
... and 548 more