feat(common-utils): Stricten a check in resolveExecutable()

On non-Windows, additionally check the that file is marked as executable.

Signed-off-by: Sebastian Schuberth <sebastian@doubleopen.org>

utils/common/src/main/kotlin/Os.kt

@@ -126,6 +126,6 @@ object Os {
     fun resolveExecutable(executable: File): File? {
         val extensions = env["PATHEXT"]?.splitToSequence(File.pathSeparatorChar).orEmpty()
         return extensions.map { File(executable.path + it.lowercase()) }.find { it.isFile }
-            ?: executable.takeIf { it.isFile }
+            ?: executable.takeIf { it.isFile && it.canExecute() }
     }
 }