Lidarr: flac2mp3 Release 2.3

## What's Changed
- **Complete re-write of the core script to use shell instead of AWK.**
- **New:** Better use of the Lidarr API, including:
  - Using it to delete or recycle old tracks
  - No more artist refresh/rescan (which took forever) (issue thecaptain989/lidarr-flac2mp3#39)
  - Imports the converted tracks directly
- Fixed logging of curl errors and improved error handling
- Removed unnecessary function
- Improved track import JSON generator logic
- Added check for 'queued'  job status
- Use tag or branch name as Docker image tag
- Added GitHub Container Registry push
- Added GitHub container Registry labels

SECURITY.md

@@ -6,8 +6,8 @@ Only the latest major and minor version are supported.
 
 | Version | Supported          |
 | ------- | ------------------ |
-| 2.2.x   | :heavy_check_mark: |
-| < 2.2   | :x:                |
+| 2.3.x   | :heavy_check_mark: |
+| < 2.3   | :x:                |
 
 ## Reporting a Vulnerability