update test.snap

Author: d4straub

conf/ref_databases.config

@@ -242,7 +242,7 @@ params {
     }
     //QIIME2 taxonomic reference databases
     qiime_ref_databases {
-        //SILVA for QIIME2 v2021.2, see https://docs.qiime2.org/2021.2/data-resources/#silva-16s-18s-rrna
+        //SILVA for QIIME2 v2023.7, see https://docs.qiime2.org/2023.7/data-resources/#silva-16s-18s-rrna
         'silva=138' {
             title = "QIIME2 pre-formatted SILVA dereplicated at 99% similarity - Version 138"
             file = [ "https://data.qiime2.org/2023.7/common/silva-138-99-seqs.qza", "https://data.qiime2.org/2023.7/common/silva-138-99-tax.qza" ]