Bump Github Actions - cache/checkout/helm/...

[goat-ssh]

Summary of changes

While working on another branch i saw some deprecations in Github actions and this tries to upgrade them.

Cherry-picked from another branch https://github.com/crate/crate-operator/pull/645/commits/309825e9875600e07c8b7a8395bc3a684e88e1b6

Checklist

• [ ] Link to issue this PR refers to:
• [ ] Relevant changes are reflected in CHANGES.rst
• [ ] Added or changed code is covered by tests
• [ ] Documentation has been updated if necessary
• [ ] Changed code does not contain any breaking changes (or this is a major version change)

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[goat-ssh]

@cla-bot check

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