ci: Add antivirus check with clamav scan.

packages/clamav-scan.sh

@@ -0,0 +1,16 @@
+#! /bin/bash
+set +x
+
+OPTS="-r -a"
+FILES="../windows/pamhyr-windows.exe ../windows/pamhyr-windows.zip ../linux/pamhyr-gnulinux.tar.xz"
+
+clamscan $OPTS $FILES | tee clamav.log
+
+RES=$(cat clamav.log | grep "Infected files: 0")
+if [ -z "$RES" ]; then
+    echo "Infected files"
+    exit -1
+else
+    echo "OK"
+    exit 0
+fi