fix minor bugs (#936)

1. update upx to v5.0.1 to avoid mips bug.
2. use latest mimalloc.
3. fix panic in ospf route
4. potential residual conn.

Cargo.lock

@@ -1550,12 +1550,6 @@ dependencies = [
  "cipher",
 ]
 
-[[package]]
-name = "cty"
-version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b365fabc795046672053e29c954733ec3b05e4be654ab130fe8f1f94d7051f35"
-
 [[package]]
 name = "curve25519-dalek"
 version = "4.1.3"
@@ -1965,7 +1959,7 @@ dependencies = [
  "kcp-sys",
  "machine-uid",
  "maplit",
- "mimalloc-rust",
+ "mimalloc",
  "multimap",
  "netlink-packet-core",
  "netlink-packet-route 0.21.0",
@@ -4097,6 +4091,16 @@ version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4ec2a862134d2a7d32d7983ddcdd1c4923530833c9f2ea1a44fc5fa473989058"
 
+[[package]]
+name = "libmimalloc-sys"
+version = "0.1.42"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec9d6fac27761dabcd4ee73571cdb06b7022dc99089acbe5435691edffaac0f4"
+dependencies = [
+ "cc",
+ "libc",
+]
+
 [[package]]
 name = "libredox"
 version = "0.1.3"
@@ -4299,21 +4303,12 @@ dependencies = [
 ]
 
 [[package]]
-name = "mimalloc-rust"
-version = "0.2.1"
-source = "git+https://github.com/EasyTier/mimalloc-rust#eb61c4d50fef4eb5fbd5db83e4ea83153646b482"
+name = "mimalloc"
+version = "0.1.46"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "995942f432bbb4822a7e9c3faa87a695185b0d09273ba85f097b54f4e458f2af"
 dependencies = [
- "cty",
- "mimalloc-rust-sys",
-]
-
-[[package]]
-name = "mimalloc-rust-sys"
-version = "2.1.2-source"
-source = "git+https://github.com/EasyTier/mimalloc-rust#eb61c4d50fef4eb5fbd5db83e4ea83153646b482"
-dependencies = [
- "cc",
- "cty",
+ "libmimalloc-sys",
 ]
 
 [[package]]