cargo-{deb, msrv, binstall}: add notice to indiacate non-standard command (#22275)

pages.zh/common/cargo-binstall.md

@@ -2,6 +2,7 @@
 
 > 从 CI 产物安装 Rust 二进制文件。
 > 如果没有可用的二进制文件，则回退到 `cargo install`（从源代码安装）。
+> 注意：这不是 Cargo 的内置命令，你需要先安装它。
 > 更多信息：<https://github.com/cargo-bins/cargo-binstall>。
 
 - 从 <https://crates.io> 安装一个软件包：

pages.zh_TW/common/cargo-binstall.md

@@ -2,6 +2,7 @@
 
 > 從 CI 產物安裝 Rust 二進位檔案。
 > 如果沒有可用的二進位檔案，則回退到 `cargo install`（從原始碼安裝）。
+> 注意：這不是 Cargo 的內置命令，你需要先安裝它。
 > 更多資訊：<https://github.com/cargo-bins/cargo-binstall>。
 
 - 從 <https://crates.io> 安裝一個套件：

pages/common/cargo-binstall.md

@@ -2,6 +2,7 @@
 
 > Install Rust binaries from CI artifacts.
 > Falls back to `cargo install` (from source code) if there are no binaries available.
+> Note: This is not a built-in Cargo command, you need to install it first.
 > More information: <https://github.com/cargo-bins/cargo-binstall>.
 
 - Install a package from <https://crates.io>:

pages/common/cargo-deb.md

@@ -1,6 +1,7 @@
 # cargo deb
 
 > Create Debian packages from Cargo projects.
+> Note: This is not a built-in Cargo command, you need to install it first.
 > More information: <https://github.com/kornelski/cargo-deb>.
 
 - Create a Debian package from a project:

pages/common/cargo-msrv.md

@@ -1,6 +1,7 @@
 # cargo msrv
 
 > Manage the Minimum Supported Rust Version (MSRV) of a project.
+> Note: This is not a built-in Cargo command, you need to install it first.
 > More information: <https://gribnau.dev/cargo-msrv/>.
 
 - Display the MSRVs of dependencies (as specified in their `Cargo.toml`):