chore: add version field to mocktail git dependency in Cargo.toml (#1733)

Signed-off-by: Gaius <gaius.qi@gmail.com>

Author: gaius-qi

Cargo.toml

@@ -115,12 +115,14 @@ hostname = "^0.4"
 tonic-health = "=0.14.2"
 hashring = "0.3.6"
 reqwest-tracing = "0.5"
-mocktail = { git = "https://github.com/IBM/mocktail", rev = "860e75e171a8eb818083813dbeed4401d1a40b3b" }
 fastrand = "2.3.0"
 cgroups-rs = "0.5"
 num_cpus = "1.17"
 async-trait = "0.1"
 
+# TODO(Gaius): Remove the git dependency after the next release of mocktail, refer to https://github.com/IBM/mocktail/issues/65.
+mocktail = { version = "0.3.0", git = "https://github.com/IBM/mocktail", rev = "860e75e171a8eb818083813dbeed4401d1a40b3b" }
+
 [profile.release]
 opt-level = 3
 lto = "thin"