Optimize caching in Dockerfile

Cargo.lock

@@ -1,5 +1,7 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "addr2line"
 version = "0.14.1"
@@ -2166,7 +2168,7 @@ checksum = "213701ba3370744dcd1a12960caa4843b3d68b4d1c0a5d575e0d65b2ee9d16c0"
 
 [[package]]
 name = "stl"
-version = "2.6.4"
+version = "2.6.5"
 dependencies = [
  "bincode",
  "chrono",
@@ -2189,7 +2191,7 @@ dependencies = [
 
 [[package]]
 name = "stl_cli"
-version = "2.6.4"
+version = "2.6.5"
 dependencies = [
  "chrono",
  "futures",
@@ -2208,7 +2210,7 @@ dependencies = [
 
 [[package]]
 name = "stl_lib"
-version = "2.6.4"
+version = "2.6.5"
 dependencies = [
  "chrono",
  "serde",