Fix process-task-attach-content-file-cloud.e2e.ts afterAll

[cristinaj]

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• Tests for the changes have been added (for bug fixes / features)
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• Bugfix
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• Code style update (formatting, local variables)
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[codecov-commenter]

Codecov Report

Merging #5963 into develop will increase coverage by 1.98%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           develop    #5963      +/-   ##
===========================================
+ Coverage    76.17%   78.16%   +1.98%     
===========================================
  Files          743      142     -601     
  Lines        16112     3920   -12192     
  Branches      3156      780    -2376     
===========================================
- Hits         12274     3064    -9210     
+ Misses        2898      603    -2295     
+ Partials       940      253     -687     

Impacted Files	Coverage Δ
...ocess-list/components/process-filters.component.ts
...nalytics/analytics-params-report-component.mock.ts
...omponents/filesize-cell/filesize-cell.component.ts
...-view/validators/card-view-item-length.valiator.ts
...ts/gateways/diagram-exclusive-gateway.component.ts
lib/core/services/auth-guard-base.ts
lib/core/mock/authentication.service.mock.ts
...orm/components/widgets/core/error-message.model.ts
...lib/task-list/components/task-filters.component.ts
...b/core/viewer/components/media-player.component.ts
... and 591 more

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