Fixed plugin to correctly non-existent file paths in config file

[misraved]

Integration test logs

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Add passing integration test logs here

Example query results

Results

select * from terraform_resource
+---------+----------------+--------+------------------------------------------------------------------------------------------------------------------------------------------------------->
| name    | type           | mode   | arguments                                                                                                                                             >
+---------+----------------+--------+------------------------------------------------------------------------------------------------------------------------------------------------------->
| example | aws_ebs_volume | <null> | {"availability_zone":"us-west-2a","final_snapshot":false,"multi_attach_enabled":null,"outpost_arn":null,"size":40,"tags":{"Name":"HelloWorld","_kics_l>
+---------+----------------+--------+-----------------------------------------------------------------------------------------------------------------------------------------------------

[misraved]

In this commit we skipped non-existent file paths specified in the config argument, as a result of which even if we had valid file paths, they got skipped as well.

This PR aims at fixing the issue by continuing to validate other file paths specified in the config argument skipping the non-existent ones.