bump phpstan to level 1

diff --git a/.phpstan.neon b/.phpstan.neon
index ab1b5e1dc235c8bd419f797350e062737afd569c..98cb21270e3f5ed2f98e29b02d240d0559f79433 100644 (file)
--- a/.phpstan.neon
+++ b/.phpstan.neon
@@ -3,7 +3,7 @@
 # SPDX-License-Identifier: CC0-1.0
 
 parameters:
-    level: 0
+    level: 1
 
     paths:
         - src/