chore: Release stackable-operator 0.101.0, stackable-webhook 0.8.0

[sbernauer]

stackable-operator 0.101.0

Added

• Support objectOverrides, a list of generic Kubernetes objects, which are merged into the objects created by the operator.
  Alongside, a deep_merger module was added, which takes a Kubernetes object and a list of overrides and merges them into the provided object (#1118).

Changed

• Bump stackable-webhook to 0.8.0, refer to its changelog ([chore: Release stackable-operator 0.100.3, stackable-webhook 0.7.1 #1117]).
• BREAKING: ClusterResources now requires the objects added to implement DeepMerge.
  This is very likely a stackable-operator internal change, but technically breaking (#1118).
• Depend on the patched version of kube-rs available at https://github.com/stackabletech/kube-rs,
  ensuring the operators automatically benefit from the fixes (#1124).

Removed

• BREAKING: ClusterResources no longer derives Eq (#1118).

stackable-webhook 0.8.0

Added

• Add support for mutating webhooks (#1119).

Changed

• BREAKING: Refactor the entire WebhookServer mechanism, so multiple webhooks can run in parallel.
  Put individual webhooks (currently ConversionWebhook and MutatingWebhook) behind the Webhook trait (#1119).

[Maleware]

LGTM! Thank you :)