feat(taskfile): Verify Cargo.lock without updating dependencies (resolves #1471). (#1473)

Author: LinZhihao-723

taskfiles/deps/lock.yaml

@@ -6,16 +6,29 @@ includes:
 tasks:
   check-rust:
     cmds:
-      - task: "cargo-workspace-update"
+      - task: "cargo-workspace-fetch"
         vars:
-          CARGO_UPDATE_FLAGS: "--locked"
+          CARGO_FETCH_FLAGS: "--locked"
 
   update-rust:
     cmds:
       - task: "cargo-workspace-update"
         vars:
           CARGO_UPDATE_FLAGS: ""
 
+  # Runs `cargo fetch` in the root Rust workspace directory with the specified flags.
+  #
+  # @param {string} CARGO_FETCH_FLAGS The flags to pass to the `cargo fetch` command.
+  cargo-workspace-fetch:
+    internal: true
+    requires:
+      vars: ["CARGO_FETCH_FLAGS"]
+    dir: "{{.ROOT_DIR}}"
+    deps: ["toolchains:rust"]
+    cmd: |-
+      . "$HOME/.cargo/env"
+      cargo fetch {{.CARGO_FETCH_FLAGS}}
+
   # Runs `cargo update` in the root Rust workspace directory with the specified flags.
   #
   # @param {string} CARGO_UPDATE_FLAGS The flags to pass to the `cargo update` command.