Update Rust toolchain for error-stack to nightly-2023-02-06 (#2030)

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This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [rust](https://togithub.com/rust-lang/rust-analyzer) | minor | `2023-01-30` -> `2023-02-06` |

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libs/error-stack/README.md

@@ -8,7 +8,7 @@
 
 [![crates.io](https://img.shields.io/crates/v/error-stack)][crates.io]
 [![libs.rs](https://img.shields.io/badge/libs.rs-error--stack-orange)][libs.rs]
-[![rust-version](https://img.shields.io/static/v1?label=Rust&message=1.63.0/nightly-2023-01-30&color=blue)][rust-version]
+[![rust-version](https://img.shields.io/static/v1?label=Rust&message=1.63.0/nightly-2023-02-06&color=blue)][rust-version]
 [![documentation](https://img.shields.io/docsrs/error-stack)][documentation]
 [![license](https://img.shields.io/crates/l/error-stack)][license]
 [![discord](https://img.shields.io/discord/840573247803097118)][discord]

libs/error-stack/macros/README.md

@@ -7,7 +7,7 @@
 
 [![crates.io](https://img.shields.io/crates/v/error-stack-macros)][crates.io]
 [![libs.rs](https://img.shields.io/badge/libs.rs-error--stack--macros-orange)][libs.rs]
-[![rust-version](https://img.shields.io/static/v1?label=Rust&message=1.63.0/nightly-2023-01-30&color=blue)][rust-version]
+[![rust-version](https://img.shields.io/static/v1?label=Rust&message=1.63.0/nightly-2023-02-06&color=blue)][rust-version]
 [![documentation](https://img.shields.io/docsrs/error-stack-macros)][documentation]
 [![license](https://img.shields.io/crates/l/error-stack)][license]
 [![discord](https://img.shields.io/discord/840573247803097118)][discord]

libs/error-stack/rust-toolchain.toml

@@ -1,4 +1,4 @@
 [toolchain]
 # Please also update the badges in `README.md`s (`error-stack` and `error-stack-macros`), and `src/lib.rs`
-channel = "nightly-2023-01-30"
+channel = "nightly-2023-02-06"
 components = ['rust-src', 'miri', 'clippy', 'rustfmt']

libs/error-stack/src/lib.rs

@@ -2,7 +2,7 @@
 //!
 //! [![crates.io](https://img.shields.io/crates/v/error-stack)][crates.io]
 //! [![libs.rs](https://img.shields.io/badge/libs.rs-error--stack-orange)][libs.rs]
-//! [![rust-version](https://img.shields.io/static/v1?label=Rust&message=1.63.0/nightly-2023-01-30&color=blue)][rust-version]
+//! [![rust-version](https://img.shields.io/static/v1?label=Rust&message=1.63.0/nightly-2023-02-06&color=blue)][rust-version]
 //! [![discord](https://img.shields.io/discord/840573247803097118)][discord]
 //!
 //! [crates.io]: https://crates.io/crates/error-stack