remove unused crates from dependencies

After using cargo shear, there are 3 crates that are shown to be unused.
I have checked the files, no mentions there. I have removed them, and
cargo check --all-features --all-targets gives no errors.

Signed-off-by: Perma Alesheikh <me@prma.dev>

Cargo.lock

@@ -1867,7 +1867,6 @@ version = "1.0.0-beta.4"
 dependencies = [
  "ariadne",
  "async-trait",
- "chrono",
  "clap",
  "clap_complete",
  "clap_mangen",
@@ -1880,7 +1879,6 @@ dependencies = [
  "email_address",
  "erased-serde",
  "indicatif",
- "keyring-lib",
  "mail-builder",
  "md5",
  "mml-lib",
@@ -1893,7 +1891,6 @@ dependencies = [
  "serde_json",
  "shellexpand-utils",
  "sled",
- "tempfile",
  "termcolor",
  "terminal_size",
  "tokio",
@@ -2255,7 +2252,8 @@ dependencies = [
 [[package]]
 name = "keyring-lib"
 version = "0.4.2"
-source = "git+https://git.sr.ht/~soywod/pimalaya#7d56cfda13fe13a9aa48d9a117573e3dfbbcf8a2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a2e6d01e57f1b382ba5a1c40ef866855e8bab15f7caa4033480db80a5b9b9aff"
 dependencies = [
  "keyring",
  "log",

Cargo.toml

@@ -45,13 +45,10 @@ pgp-commands = ["email-lib/pgp-commands", "mml-lib/pgp-commands", "pgp"]
 pgp-gpg = ["email-lib/pgp-gpg", "mml-lib/pgp-gpg", "pgp"]
 pgp-native = ["email-lib/pgp-native", "mml-lib/pgp-native", "pgp"]
 
-[dev-dependencies]
-tempfile = "3.3"
 
 [dependencies]
 ariadne = "0.2"
 async-trait = "0.1"
-chrono = "0.4.24"
 clap = { version = "4.4", features = ["derive"] }
 clap_complete = "4.4"
 clap_mangen = "0.2"
@@ -63,7 +60,6 @@ email-lib = { version = "=0.24.0", default-features = false, features = ["derive
 email_address = "0.2.4"
 erased-serde = "0.3"
 indicatif = "0.17"
-keyring-lib = { version = "=0.4.2", features = ["derive"] }
 mail-builder = "0.3"
 md5 = "0.7"
 mml-lib = { version = "=1.0.12", default-features = false, features = ["derive"]  }