chore: Release stackable-operator 0.110.0

[sbernauer]

Added

• Add generic database connection mechanism (#1163).
• Add config_overrides module with KeyValueOverridesProvider trait, enabling
  structured config file formats (e.g. JSON) in addition to key-value overrides (#1177).
• Add Scaler CRD (#1190, #1195).

Changed

• BREAKING: Change signature of ContainerBuilder::add_env_vars from Vec<EnvVar> to IntoIterator<Item = EnvVar> (#1163).
• BREAKING: Remove EXPERIMENTAL_ prefix in CONFIG_OVERRIDE_FILE_HEADER_KEY and CONFIG_OVERRIDE_FILE_FOOTER_KEY (#1191).
• BREAKING: Bump kube from a custom version (fe69cc486ff8e62a7da61d64ec3ebbd9e64c43b5, which is between 3.0.1 and 3.1.0
  and was needed to pull in schema fixes) to 3.1.0. This means that the CRD schema generation bugs
  #1934 and #1942 are fixed (#1192).
• BREAKING: Add ConfigOverrides type parameter to CommonConfiguration, Role and RoleGroup.
  The config_overrides field is now generic instead of HashMap<String, HashMap<String, String>> (#1177).
• BREAKING: In [feat: add support for specifying a clientAuthenticationMethod for OIDC #1178] the clientAuthenticationMethod was added to the ClientAuthenticationOptions struct,
  resulting it to show up in all product CRDs. even those that don't support configuring the client authentication method.
  With this change, operators need to opt-in to the clientAuthenticationMethod field by using the new
  ClientAuthenticationMethodOption struct for the generic type ProductSpecificClientAuthenticationOptions on
  ClientAuthenticationOptions. That way the struct definitions (as well as docs etc.) remain in stackable-operator,
  but operators can decide if they want to offer support for this field or not (#1194).

[maltesander]

LGTM!