chore: Pre-release updates for Stackable Release 26.3.0

[sbernauer]

Part of stackabletech/issues#812

Update pre-commit Workflow

Note

The pre-commit config and workflows need to be kept up-to-date to ensure
usage of recent tooling versions. This requires some manual work in this
repository.

• Update python-version in local and templated pr_pre-commit.yml workflow
• Update hook refs in local and templated .pre-commit-config.yaml file
• Update Hadolint version in the config/versions.yaml file

Update Rust Toolchain

Note

During a Stackable release we need to ensure that every product operator uses
the latest Rust toolchain (used by us). To keep the toolchain in sync across
all our operators, we update the version centrally in this repository.

Tasks

• Run niv update and test via make run-dev
• Update stable Rust toolchain in the config/versions.yaml file.
• Update nightly Rust toolchain in the config/versions.yaml file (Keep in sync across this,
  operator-rs and docker-images).
• Update Rust toolchain in UBI9 and stackable-base images
• Update cargo-cyclonedx and cargo-auditable in UBI9 and stackable-base images
• Generate downstream PRs using the "Generate Downstream PRs" action. Use the following title for downstream PRs: chore(template): Updates for SDP YY.M.X.
• Search for PRs and add them to the list below.
• Add the release/YY.M.X label to the downstream PRs and continue to merge them. See below for more details.

Downstream PRs

![!NOTE]
Replace the items in the task lists below with the applicable Pull Requests.

• PR for ubi9-rust-builder image
• PR for stackable-base image
• PR for airflow-operator
• PR for commons-operator
• PR for druid-operator
• PR for hbase-operator
• PR for hdfs-operator
• PR for hive-operator
• PR for kafka-operator
• PR for listener-operator
• PR for nifi-operator
• PR for opa-operator
• PR for opensearch-operator
• PR for secret-operator
• PR for spark-k8s-operator
• PR for superset-operator
• PR for trino-operator
• PR for zookeeper-operator