[Security Solution] [Bug] The tsv file format is not allowed even though it is mentioned as supported file format

[muskangulati-qasource]

Describe the bug The tsv file format is not allowed even though it is mentioned as supported file format

Kibana/Elasticsearch Stack version

VERSION: 8.16.0
BUILD: 78825
COMMIT: a805375758e4bc931cf13dfdcac89b8d877a15d2

Steps

1. Kibana version 8.16.0 or above should exist without endpoints
2. Navigate to Entity Store tab
3. Create a file as below with file extension as .tsv

user    ubuntu  medium_impact
user    root    low_impact
host    <IP_address>    extreme_impact
host    <IP_address>    high_impact
host    <IP_address>    medium_impact

4. Click on ‘select or drag and drop a file’
5. Add the file created
6. Observe the error occurred for the not supported file.

Expected Result The TSV file should be accepted as it is mentioned as supported file format for bulk upload

Screenshot

[elasticmachine]

Pinging @elastic/security-solution (Team: SecuritySolution)

[elasticmachine]

Pinging @elastic/security-entity-analytics (Team:Entity Analytics)

[muskangulati-qasource]

@amolnater-qasource please review!!

[amolnater-qasource]

Reviewed & assigned to @MadameSheema