correct PIN variable

entrypoint.sh

@@ -19,9 +19,9 @@ while IFS=  read -r f; do
   docker run --rm \
     -v /run/pcscd/pcscd.comm:/run/pcscd/pcscd.comm:ro \
     -v "${PWD}":/home/user \
-    -e INPUT_USER_PIN \
+    -e INPUT_PIN \
     git.lerch.org/lobo/pkcs11:1 \
-    -s --id "${INPUT_SLOT}" -m SHA256-RSA-PKCS -i "$f" -o "${dest_sig}" --pin env:INPUT_USER_PIN
+    -s --id "${INPUT_SLOT}" -m SHA256-RSA-PKCS -i "$f" -o "${dest_sig}" --pin env:INPUT_PIN
   ec=$?
   if [ $ec -ne 0 ]; then
     exit $ec