Debian Bookworm repository for Temurin 21 not working

**What are you trying to do?**
Install temurin-21-jdk on Debian Bookworm

**Observed behaviour:**
```bash
root@bennu:~# cat /etc/apt/sources.list.d/adoptium.list
deb [signed-by=/etc/apt/keyrings/adoptium.asc] https://packages.adoptium.net/artifactory/deb bookworm main
root@bennu:~# apt update
Hit:1 http://deb.debian.org/debian bookworm InRelease
Get:2 http://security.debian.org/debian-security bookworm-security InRelease [48.0 kB]
Hit:3 https://download.docker.com/linux/debian bookworm InRelease
Hit:4 http://deb.debian.org/debian bookworm-updates InRelease
Get:5 https://packages.adoptium.net/artifactory/deb bookworm InRelease [6,638 B]
Fetched 54.6 kB in 1s (55.7 kB/s)
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
All packages are up to date.
root@bennu:~# apt install temurin-21-jdk
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following additional packages will be installed:
adoptium-ca-certificates alsa-topology-conf alsa-ucm-conf fontconfig-config fonts-dejavu-core fonts-dejavu-extra java-common libasound2 libasound2-data libfontconfig1
libxi6 libxrender1 libxtst6 p11-kit p11-kit-modules x11-common
Suggested packages:
default-jre libasound2-plugins alsa-utils
The following NEW packages will be installed:
adoptium-ca-certificates alsa-topology-conf alsa-ucm-conf fontconfig-config fonts-dejavu-core fonts-dejavu-extra java-common libasound2 libasound2-data libfontconfig1
libxi6 libxrender1 libxtst6 p11-kit p11-kit-modules temurin-21-jdk x11-common
0 upgraded, 17 newly installed, 0 to remove and 0 not upgraded.
Need to get 177 MB/183 MB of archives.
After this operation, 378 MB of additional disk space will be used.
Do you want to continue? [Y/n]
Err:1 https://packages.adoptium.net/artifactory/deb bookworm/main amd64 temurin-21-jdk amd64 21.0.1.0.0+12
400 Bad Request [IP: 151.101.243.42 443]
E: Failed to fetch https://packages.adoptium.net/artifactory/deb/pool/main/t/temurin-${VERSION}/temurin-21-jdk_21.0.1.0.0%2b12_amd64.deb 400 Bad Request [IP: 151.101.243.42 443]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

```

**Any other comments:**
Fresh Bookworm install from today, almost nothing else installed than base netinstall. Lookslike something is wrong and ```${VERSION}``` did not get replaced with 21 with the debian repository build.

Reproduce the failure using the Debian Bookworm repository entry and the apt update/install commands shown in the report. Trace how the repository produces the temurin-21-jdk package URL and verify that installation succeeds without a literal ${VERSION} path.

Written by the indexing model from the issue text.