chore(hdfs): Update major/minor versions for 26.3.0

[NickLarsenNZ]

Part of #1368.

• Remove: 3.4.1

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Please add the scheduled-for/YY.M.X label, and add to the Stackable Engineering project.

Update tasks

• Update boil-config.toml to reflect the agreed upon versions in the spreadsheet (including the removal of old versions).
• Upload new version (see hadoop/upload_new_hadoop_version.sh).
• Update boil-config.toml to the latest supported version of JVM (base and devel).
• Update other dependencies if applicable (eg: hdfs_utils, jmx_exporter, protobuf, etc).
• Check other operators (getting_started / kuttl / supported-versions) for usage of the versions. Add the PR(s) to the list below.
• Update the version in demos. Add the PR(s) to the list below.

Related Pull Requests

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Delete any items that do not apply so that all applicable items can be checked.
For example, if you add release notes to the documentation repository, you do not need the latter two criteria.

• Link to the docker-images PR (product update)
• Link to hdfs-utils PR (if applicable)
• Link to the operator PR (getting_started / kuttl / supported-versions)
• Link to any other operator PRs (getting_started / kuttl)
• Link to demo PR (raise against the main branch)
• Link to the Release Notes PR in the documentation repo (if not a comment below)

Acceptance

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This list should be completed by the assignee(s), once respective PRs have been merged. Once all items have been
checked, the issue can be moved into Development: Done.

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