feat!: Use stackable-telemetry (#767)

* chore: Replace print_startup_string with structured event

* chore: Update changelog

* chore: Correct changelog entry

* feat!: Replace log initialization with stackable-telemetry

BREAKING: The log directory variable for the rolling file appender has changed

---------

Co-authored-by: Techassi <[email protected]>

Author: NickLarsenNZ

CHANGELOG.md

@@ -4,6 +4,15 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
 
+### Changed
+
+- Replace stackable-operator `initialize_logging` with stackable-telemetry `Tracing` ([#767]).
+  - BREAKING: The file log directory was set by `NIFI_OPERATOR_LOG_DIRECTORY`, and is now set by `ROLLING_LOGS`
+    (or via `--rolling-logs <DIRECTORY>`).
+  - Replace stackable-operator `print_startup_string` with `tracing::info!` with fields.
+
+[#767]: https://github.com/stackabletech/nifi-operator/pull/767
+
 ## [25.3.0] - 2025-03-21
 
 ### Added