build: fix test group name

pyproject.toml

@@ -36,7 +36,7 @@ dynamic = ["version"]
 [project.optional-dependencies]
 pg = ["psycopg[binary]", "requests"]
 etl = ["owlready2==0.40", "rdflib", "wags-tails>=0.1.2", "fastobo", "tqdm"]
-test = ["pytest>=6.0", "pytest-cov", "httpx"]
+tests = ["pytest>=6.0", "pytest-cov", "httpx"]
 dev = ["pre-commit>=3.7.1", "ruff==0.5.0", "lxml", "xmlformatter"]
 docs = [
     "sphinx==6.1.3",