Remove openjdk dependency (provided by base image)

Author: ewels

.seqera/environment.yaml

@@ -4,7 +4,6 @@ channels:
   - conda-forge
   - bioconda
 dependencies:
-  - openjdk=21
   - nextflow=25.10.2
   # TODO: nf-test from conda lacks v2 parser support until next release
   # See: https://github.com/askimed/nf-test/pull/336