test: Increase code coverage in CryptoDeleteAllowanceHandlerTest

[petreze]

Description:
Code coverage increased from 71.25 % to 95.00 %

Related issue(s):

Fixes #16833

Notes for reviewer:

Checklist

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

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ +0.02% (target: -1.00%)	✅ ∅

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (539f059)	97548	63701	65.30%
Head commit (4faaf9d)	97548 (+0)	63718 (+17)	65.32% (+0.02%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#16834)	0	0	∅ (not applicable)

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 63.62%. Comparing base (539f059) to head (4faaf9d).
Report is 1 commits behind head on develop.

Additional details and impacted files

@@              Coverage Diff              @@
##             develop   #16834      +/-   ##
=============================================
+ Coverage      63.60%   63.62%   +0.02%     
- Complexity     20401    20408       +7     
=============================================
  Files           2537     2537              
  Lines          94783    94783              
  Branches        9907     9907              
=============================================
+ Hits           60285    60306      +21     
+ Misses         30892    30875      -17     
+ Partials        3606     3602       -4     

see 2 files with indirect coverage changes

[thomas-swirlds-labs]

LGTM. Thanks @petreze 🎉