Adding support for symbolic links.

[seanleblanc]

Related: #2275

[chanseokoh]

@seanleblanc thanks for opening the PR ! For now, you need to sign the CLA so that we can accept your contribution. Check the details page of the CLA check failure above. I see that at least two authors are involved in this PR, so both of them should sign the CLA.

The following contributors were found for this pull request:

x c40c7ac PR Opener: @seanleblanc <sea ****** nc​@gmail.com>
x c40c7ac Author: @seanleblancicdtech <sea ****** anc​@icd-tech.com>

Also, make sure you run ./gradlew goJF to format the code.

Caused by: org.gradle.api.GradleException: Checkstyle rule violations were found. See the report at: file:///home/runner/work/jib/jib/jib-core/build/reports/checkstyle/main.html
Checkstyle files with violations: 1
Checkstyle violations by severity: [warning:1]

[sonarcloud]

SonarCloud Quality Gate failed.   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

0.0% Coverage
0.0% Duplication