release v0.3.3 (build 2): fixed pmm binaries + repacked pdm

Rebuilt release with the mkdir-stage + empty-unpack fixes; re-packed the
0.3.3 .pdm files (linux/windows) from the fixed binaries and updated their
sha256 in the mirror registry.

web/mirror/packages/pmm.json

@@ -335,7 +335,7 @@
             "arch": "amd64",
             "file": "0.3.3-windows-amd64.pdm",
             "url": "https://pmm.parlz.com/mirror/packages/pmm/0.3.3-windows-amd64.pdm",
-            "sha256": "aa6f2a387aaa313b62f40b9ee15ce75b296287d816b3610e1bdac273b7b89eed",
+            "sha256": "c86a6082e49e1b39e82911444db82266138898891f7735ac52804e69cf9b3042",
             "description": "PMM v0.3.3"
         },
         {
@@ -344,7 +344,7 @@
             "arch": "amd64",
             "file": "0.3.3-linux-amd64.pdm",
             "url": "https://pmm.parlz.com/mirror/packages/pmm/0.3.3-linux-amd64.pdm",
-            "sha256": "47088bb8a84f016d25a0ae5944dd6a9cc83eb074cd42f47be7c3e04fd3fbcce5",
+            "sha256": "b019a4aec9e4b146c2754d31c14f962f20dd38b778c0760b0575780dc2d14de1",
             "description": "PMM v0.3.3"
         }
     ]