.github/workflows: use paths-ignore (without / prefix)

Author: ydnar

.github/workflows/test.yaml

@@ -6,11 +6,11 @@ on:
       - main
   pull_request:
     paths-ignore:
-        - '/.prettier*'
-        - '/.vscode/**'
-        - '/*.md'
-        - '/docs/**'
-        - '/LICENSE'
+        - '.prettier*'
+        - '.vscode/**'
+        - '*.md'
+        - 'docs/**'
+        - 'LICENSE'
 
 env:
   wasm-tools-version: "1.219.1"