scripts: Build RocksDB without a static library

The static library can be quite large and we do not really need it. This
will save space in the cache and future containers.

Author: michaelkuhn

scripts/spack

@@ -152,7 +152,7 @@ spack_get_dependencies ()
 	dependencies="${dependencies} mariadb-c-client"
 	dependencies="${dependencies} mongo-c-driver"
 	dependencies="${dependencies} otf"
-	dependencies="${dependencies} rocksdb"
+	dependencies="${dependencies} rocksdb~static"
 
 	if test -n "${CI}"
 	then