[Merged by Bors] - Add support for listing Spark History Servers

[sbernauer]

Description

I suggest reviewing commits separately

Currently with https://github.com/stackabletech/spark-k8s-operator/pull/187 it produces. We should probably adopt the exposed services

┌──────────────────────┬───────────────┬──────────────────────────────┬───────────────────────────────────────────┬──────┐
│ Product              ┆ Name          ┆ Namespace                    ┆ Endpoints                                 ┆ Info │
╞══════════════════════╪═══════════════╪══════════════════════════════╪═══════════════════════════════════════════╪══════╡
│ spark-history-server ┆ spark-history ┆ kuttl-test-credible-crayfish ┆ node-http         http://172.18.0.4:32525 ┆      │
│                      ┆               ┆                              ┆ node-cleaner-http http://172.18.0.4:32589 ┆      │
└──────────────────────┴───────────────┴──────────────────────────────┴───────────────────────────────────────────┴──────┘

Review Checklist

• [ ] Code contains useful comments
• [ ] (Integration-)Test cases added (or not applicable)
• [ ] Documentation added (or not applicable)
• [ ] Changelog updated (or not applicable)
• [ ] Cargo.toml only contains references to git tags (not specific commits or branches)

Once the review is done, comment bors r+ (or bors merge) to merge. Further information

[sbernauer]

bors r+

[bors[bot]]

Pull request successfully merged into main.

Build succeeded:

• Run Rustfmt