chore: Bump stackable-operator and product-config

[Techassi]

Part of stackabletech/issues#601, stackabletech/issues#557

# Reviewer
- [x] Changelog updated
- [x] Cargo.toml only contains references to git tags (not specific commits or branches)

[NickLarsenNZ]

LGTM

[sbernauer]

Hi @Techassi and @NickLarsenNZ,, I just wanted to ask why we added a changelog entry for this PR and #587?
I though according to https://github.com/stackabletech/decisions/issues/17#issuecomment-2191148634 we

Only include dependency bumps in the changelog when they introduce breaking changes

which I can not see here (druid-op users should not notice this bump). I'm currently bumping to operator-rs 0.73.0 and need to adopt the changelog again. I would be in favor of removing this changelog entries (as we did in the past), WDYT?

[NickLarsenNZ]

@sbernauer, I can't answer that.