deps: add suppaftp and parking_lot

suppaftp 12 is the FTP client behind the put FTP fallback transport:
the maintained continuation of rust-ftp (4.2M downloads, releases this
month), used with its default features only — a plain blocking FTP
stream, no TLS, no async. It brings just lazy-regex into the tree;
chrono is shared.

parking_lot replaces std sync mutex unwrapping in test code, per the
project rule.

Cargo.lock

@@ -1163,6 +1163,29 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "lazy-regex"
+version = "3.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4994ba703f78b083e2f7946dac9251abd83fd43a0365f030e99b69be5b4b9ef9"
+dependencies = [
+ "lazy-regex-proc_macros",
+ "once_cell",
+ "regex",
+]
+
+[[package]]
+name = "lazy-regex-proc_macros"
+version = "3.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fd97232314824e6dbef1918a871bb93f51070455e3715bf26e19a6d01aa977a0"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "regex",
+ "syn 2.0.119",
+]
+
 [[package]]
 name = "lazy_static"
 version = "1.5.0"
@@ -1543,6 +1566,7 @@ dependencies = [
  "libc",
  "log",
  "md-5",
+ "parking_lot",
  "regex",
  "reqwest",
  "serde",
@@ -1552,6 +1576,7 @@ dependencies = [
  "sha1",
  "sha2",
  "ssh2",
+ "suppaftp",
  "tar",
  "tempfile",
  "test-log",
@@ -2063,6 +2088,18 @@ version = "2.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "13c2bddecc57b384dee18652358fb23172facb8a2c51ccc10d74c157bdea3292"
 
+[[package]]
+name = "suppaftp"
+version = "12.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba93b140f4d07f1b3f3fb4d7264b2d422d5c8b4e925eb6a2646e1342d5d2070a"
+dependencies = [
+ "chrono",
+ "lazy-regex",
+ "log",
+ "thiserror",
+]
+
 [[package]]
 name = "syn"
 version = "2.0.119"

Cargo.toml

@@ -35,6 +35,8 @@ gpgme = "0.11"
 serde_yaml = "0.9"
 lazy_static = "1.4.0"
 unicode-width = "0.2"
+parking_lot = "0.12"
+suppaftp = "12"
 
 [dev-dependencies]
 test-log = "0.2.19"