TVDB API v4 treated as v3

[Quenyaah]

My recently acquired TVDB API key, which I presume is v4, is being treated as v3 due to its character length.

The key is according to the following format:
xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx

[INFO ] - 2025-02-23 09:55:05 @ Main.loadImplementation: Loaded implementation << imdb-docker << updatetool.imdb.ImdbDockerImplementation
[INFO ] - 2025-02-23 09:55:05 @ Main.main: Running version: 1.9.2
[INFO ] - 2025-02-23 09:55:05 @ Main.main: Args: {imdb-docker={schedule=12}}
[INFO ] - 2025-02-23 09:55:05 @ Main.main: << INIT: imdb-docker @ {schedule=12} >>
[INFO ] - 2025-02-23 09:55:05 @ ImdbDockerImplementation.bootstrap: DUMP OF ENV_VARS: [{PATH=/usr/local/openjdk-11/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin, UNLOCK_FOR_NEW_TV_AGENT=1;2, TVDB_API_KEY=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx RUN_EVERY_N_HOURS=12, JAVA_HOME=/usr/local/openjdk-11, OLDPWD=/usr/app, TERM=xterm, LANG=C.UTF-8, HOSTNAME=mynttt-updatetool-1, PLEX_DATA_DIR=/plexdata, JAVA_VERSION=11.0.16, PWD=/config, SHLVL=1, HOME=/root, _=/usr/local/openjdk-11/bin/java, USE_PLEX_SQLITE_BINARY_FOR_WRITE_ACCESS=/usr/app/plexsqlitedriver/Plex SQLite}]
[INFO ] - 2025-02-23 09:55:05 @ ImdbDockerImplementation.bootstrap: No TMDB API key detected. Will not process TMDB backed Movie and TV Series libraries and TMDB orphans.
[INFO ] - 2025-02-23 09:55:06 @ TvdbApiV3.<init>: Testing TVDB API (v3) authorization apikey: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
[ERROR] - 2025-02-23 09:55:07 @ TvdbApiV3.auth: TVDB authorization failed with code 401
[ERROR] - 2025-02-23 09:55:07 @ TvdbApiV3.auth: This could be due to the TVDB API having issues at the moment or your credentials being wrong.
[ERROR] - 2025-02-23 09:55:07 @ TvdbApiV3.auth: This is the received response:
[ERROR] - 2025-02-23 09:55:07 @ TvdbApiV3.auth: {"Error":"API Key Required"}
[ERROR] - 2025-02-23 09:55:07 @ TvdbApiV3.auth: ===================================================
[ERROR] - 2025-02-23 09:55:07 @ TvdbApiV3.<init>: API Test failed: TVDB API authorization failed.
[ERROR] - 2025-02-23 09:55:07 @ TvdbApiV3.<init>: Legacy (v3) keys available under: https://thetvdb.com/