fix deprecated use of std::u64/... modules

integer primitive type modules are deprecated, use
associated constants instead

Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>

pxar-bin/src/main.rs

@@ -285,7 +285,7 @@ fn extract_archive(
                 optional: true,
                 default: ENCODER_MAX_ENTRIES as isize,
                 minimum: 0,
-                maximum: std::isize::MAX,
+                maximum: isize::MAX,
             },
         },
     },