PIN: template out vsearch version (#212)

Co-authored-by: Colin Wood <[email protected]>

Author: lizgehret

conda-recipe/meta.yaml

@@ -18,7 +18,7 @@ requirements:
   - scikit-bio {{ scikit_bio }}
   - biom-format {{ biom_format }}
   - blast >=2.13.0
-  - vsearch
+  - vsearch {{ vsearch }}
   - qiime2 {{ qiime2_epoch }}.*
   - q2-types {{ qiime2_epoch }}.*
   - q2-quality-control {{ qiime2_epoch }}.*