Fixing randomly failing EoS report tests

[martinboulais]

I DON'T have JIRA ticket

• explain what this PR does

Notable changes for developers:

• Fixed EoS report tests that fails during the shift transition period (30 minutes after start of new shifts)

[xsalonx]

accoriding to docs, it doesn't return Promise

[codecov]

Codecov Report

❌ Patch coverage is 0% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 35.70%. Comparing base (7f6dbfd) to head (1953d20).

Files with missing lines	Patch %	Lines
lib/server/services/shift/ShiftService.js	0.00%	5 Missing ⚠️

❗ There is a different number of reports uploaded between BASE (7f6dbfd) and HEAD (1953d20). Click for more details.

HEAD has 4 uploads less than BASE

Flag	BASE (7f6dbfd)	HEAD (1953d20)
	17	13

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1601      +/-   ##
==========================================
- Coverage   45.68%   35.70%   -9.98%     
==========================================
  Files        1031     1031              
  Lines       17206    17206              
  Branches     3134     3134              
==========================================
- Hits         7861     6144    -1717     
- Misses       9345    11062    +1717     

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