chore(superchain): maven version, docs: CONTRIBUTING.md

[ysuzuki19]

This PR resolves Issue #4080 and bumps version of the maven from 3.9.2 to 3.9.3.

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By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[mrgrain]

Can we keep the old instructions here? Assuming they still work?
Open to offering both as alternative options though...

[ysuzuki19]

I agree with the idea, but old instruction isn't working.

Because path of some COPY instruction now no longer match (ref).

Do you still want to keep the old one?

[mrgrain]

No that's fine then! Thanks for letting me know!

[ysuzuki19]

Thanks for your response, but I just want to make sure I understand correctly.

Does that mean I can leave the code as it is now?

[mrgrain]

Yes, no request from me right now. I'll look into this section of doc myself but this will have to be my tomorrow!

This doesn't work

[ysuzuki19]

note:

My Environment: Ubuntu 22.04.2 LTS x86_64

The build command exists in following

jsii/.github/workflows/docker-images.yml

Lines 134 to 145 in 877cdf8

	run: |-
	docker buildx build \
	--builder ${{ steps.buildx.outputs.name }} \
	--platform linux/amd64,linux/arm64 \
	--target superchain \
	--pull \
	--build-arg BUILD_TIMESTAMP="${{ steps.build-time.outputs.value }}" \
	--build-arg COMMIT_ID='${{ github.sha }}' \
	--build-arg NODE_MAJOR_VERSION=${{ matrix.node }} \
	-f superchain/Dockerfile \
	.

[ysuzuki19]

Sorry I forgotten option --target.

Pushed it.

[mergify]

Thank you for contributing! ❤️ I will now look into making sure the PR is up-to-date, then proceed to try and merge it!

[mergify]

Merging (with squash)...