label values expected for kubernetes discovery are not valid values for a label

[brunnels]

Following the docs here: https://github.com/autobrr/dashbrr/blob/main/docs/config_management.md#kubernetes-label-configuration

If you try to add the labels by editing the service I get the following:

# services "radarr" was not valid:
# * metadata.labels: Invalid value: "${DASHBRR_RADARR_API_KEY}": a valid label must be an empty string or consist of alphanumeric characters, '-', '_' or '.', and must start and end with 
an alphanumeric character (e.g. 'MyValue',  or 'my_value',  or '12345', regex used for validation is '(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])?')
# * metadata.labels: Invalid value: "https://radarr.domain.org": a valid label must be an empty string or consist of alphanumeric characters, '-', '_' or '.', and must start and end with 
an alphanumeric character (e.g. 'MyValue',  or 'my_value',  or '12345', regex used for validation is '(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])?')
# * metadata.labels: Invalid value: "http://radarr.downloads": a valid label must be an empty string or consist of alphanumeric characters, '-', '_' or '.', and must start and end with
an alphanumeric character (e.g. 'MyValue',  or 'my_value',  or '12345', regex used for validation is '(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])?')

Environment:
talosVersion: v1.9.3
kubernetesVersion: v1.32.1

[brunnels]

The values can work for annotations, just not labels.