sarif report: allow file paths in file URI scheme

[theKBro]

see https://issues.jenkins.io/browse/JENKINS-73933

file paths in file uri scheme are converter to normal paths

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[KalleOlaviNiemitalo]

Does this work with % encoding in file: URLs?

[theKBro]

If an exception occurs it falls back to the old value

[KalleOlaviNiemitalo]

I meant, if the SARIF file has "file:///dir/%E2%82%AC", then does this translate it to "/dir/%E2%82%AC" or to "/dir/€"?

[theKBro]

I added test data to the testcase to clarify this -> its getting translated

[theKBro]

current solution seems to work under windows only...
any proposal how to improve the code?