Add rskj reproducible build for VETIVER-9.0.1

[josedahlquist]

rskj reproducible build for version 9.0.1

ffa9ada4e58ede93b342171ce635392f99315b744efbf251bda2fb2cd18da3bb  rskj-core-9.0.1-VETIVER-all.jar
d21a454cf8b16624db23cc4de210840567f3980685046602f9cb44b79085bb49  rskj-core-9.0.1-VETIVER-sources.jar
cc80674ba45588f56bd67a7661f577842cd55661cef89a05b6baa99180381171  rskj-core-9.0.1-VETIVER.jar
d2f76bc758ea000cbb9259bd19854bcf4e498004bf68a8aad51f8c6c3839593a  rskj-core-9.0.1-VETIVER.module
481b7d6aca96ec2c4c281e8e9558a8df6bd47e3ffab443399ee4b0d7bb1873b5  rskj-core-9.0.1-VETIVER.pom

[josedahlquist]

Hashes verified!

ffa9ada4e58ede93b342171ce635392f99315b744efbf251bda2fb2cd18da3bb  rskj-core-9.0.1-VETIVER-all.jar
d21a454cf8b16624db23cc4de210840567f3980685046602f9cb44b79085bb49  rskj-core-9.0.1-VETIVER-sources.jar
cc80674ba45588f56bd67a7661f577842cd55661cef89a05b6baa99180381171  rskj-core-9.0.1-VETIVER.jar
d2f76bc758ea000cbb9259bd19854bcf4e498004bf68a8aad51f8c6c3839593a  rskj-core-9.0.1-VETIVER.module
481b7d6aca96ec2c4c281e8e9558a8df6bd47e3ffab443399ee4b0d7bb1873b5  rskj-core-9.0.1-VETIVER.pom

[Copilot]

Pull request overview

Updates the rskj VETIVER-9.0.1 reproducible build recipe to match the conventions used by adjacent VETIVER versions (e.g., 9.0.2), improving verification clarity and Docker image hygiene.

Changes:

• Clarified the README “Verify” instructions to explicitly state that the command output should match the expected artifact hashes.
• Improved the Dockerfile apt layer by adding -y to apt-get install and cleaning /var/lib/apt/lists/* to reduce image size and avoid stale apt metadata.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
rskj/9.0.1-vetiver/README.md	Makes the verification step clearer and more direct.
rskj/9.0.1-vetiver/Dockerfile	Adds apt cache cleanup and standardizes install flags for a cleaner build layer.

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