chore: Release stackablectl 1.1.0

[siegfriedweber]

This releases stackablectl 1.1.0.

Added

• Add OpenSearch to the list of supported products (#400).

Fixed

• nix: Update nixpkgs and upgrade nodejs-18 to nodejs_20 (#384).
• nix: Default to release build (#388).
• Switch to idempotent Helm installations for demos and stacks (#386).
• Ignore failed re-application of Jobs due to immutability in demo and stack installations.
  Display those manifests to the user, so they can decide if they need to delete and recreate it (#386).