Drop explicit norecursedirs setting, which we no longer need

pyproject.toml

@@ -16,7 +16,7 @@ dependencies = [
   "img2pdf>=0.5",
   "packaging>=20",
   "pdfminer.six>=20220319",
-  "pi-heif", # Heif image format - maintainers: if this is removed, it will NOT break
+  "pi-heif",                 # Heif image format - maintainers: if this is removed, it will NOT break
   "pikepdf>=8.10.1,!=9.8.0",
   "Pillow>=10.0.1",
   "pluggy>=1",
@@ -102,7 +102,6 @@ exclude_lines = [
 
 [tool.pytest.ini_options]
 minversion = "6.0"
-norecursedirs = ["lib", ".pc", ".git", "venv", "output", "cache", "resources"]
 testpaths = ["tests"]
 addopts = "-n auto"
 markers = ["slow"]