Use S3 structs from the operator-rs framework (#55)

## Description

Fixes #49 

**TODO**: release operator-rs 0.18.0 and update Cargo.toml files.

Author: razvan

.pre-commit-config.yaml

@@ -0,0 +1,22 @@
+---
+# See https://pre-commit.com for more information
+# See https://pre-commit.com/hooks.html for more hooks
+repos:
+    - repo: https://github.com/pre-commit/pre-commit-hooks
+      rev: v3.2.0
+      hooks:
+          - id: trailing-whitespace
+          - id: end-of-file-fixer
+          - id: detect-aws-credentials
+            args: ["--allow-missing-credentials"]
+          - id: detect-private-key
+    - repo: https://github.com/doublify/pre-commit-rust
+      rev: v1.0
+      hooks:
+          - id: fmt
+          - id: clippy
+            args: ["--all-targets"]
+    - repo: https://github.com/adrienverge/yamllint
+      rev: v1.26.3
+      hooks:
+          - id: yamllint

CHANGELOG.md

@@ -10,7 +10,9 @@ All notable changes to this project will be documented in this file.
 - ServiceAccount, ClusterRole and RoleBinding for Spark driver ([#39])
 - S3 credentials can be provided via a Secret ([#42])
 - Job information can be passed via a configuration map ([#50])
+- Update S3 bucket specification to be conform with the corresponding ADR ([#55])
 
 [#39]: https://github.com/stackabletech/spark-k8s-operator/pull/39
 [#42]: https://github.com/stackabletech/spark-k8s-operator/pull/42
 [#50]: https://github.com/stackabletech/spark-k8s-operator/pull/50
+[#55]: https://github.com/stackabletech/spark-k8s-operator/pull/55