Minimal reproducible example for ktlint project bug issue

Bug issue reference: JLLeitschuh/ktlint-gradle#399

Steps to reproduce:

• Get two machines with Windows and Linux based OS.
• Make sure you have local $JAVA_HOME references the 14 jdk version
• Run (local check) ./gradlew clean ktlintCheck
• Run (docker build) docker build -t <image_name> .

Expected result:

• [Windows OS] Local check failed with "ktlintMainSourceSetCheck" task failure
• [Windows OS] Local check debug log for "ktlintMainSourceSetCheck" is [DEBUG] <...>ms / 1 file(s) / 1 error(s)
• [Linux OS] Docker build failed with "ktlintMainSourceSetCheck" task failure
• [Linux OS] Docker build debug log for "ktlintMainSourceSetCheck" is [DEBUG] <...>ms / 1 file(s) / 1 error(s)

Actual result:

• [Windows OS] Local check completes successfully
• [Windows OS] Local check debug log for "ktlintMainSourceSetCheck" is [DEBUG] <...>ms / 0 file(s) / 0 error(s)
• [Linux OS] works as expected