Spotted
```
The package `block v0.1.6` currently triggers the following future incompatibility lints:
> warning: static of uninhabited type
>   --> .../block-0.1.6/src/lib.rs:64:5
>    |
> 64 |     static _NSConcreteStackBlock: Class;
>    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>    |
>    = note: uninhabited statics cannot be initialized, and any access would be an immediate error
>    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
>    = note: for more information, see issue #74840 <https://github.com/rust-lang/rust/issues/74840>

The package `proc-macro-error2 v2.0.1` currently triggers the following future incompatibility lints:
> warning[E0365]: extern crate `proc_macro` is private and cannot be re-exported
>    --> .../proc-macro-error2-2.0.1/src/lib.rs:494:13
>     |
> 494 |     pub use proc_macro;
>     |             ^^^^^^^^^^
>     |
>     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
>     = note: for more information, see issue #127909 <https://github.com/rust-lang/rust/issues/127909>
> help: consider making the `extern crate` item publicly accessible
>     |
> 277 | pub extern crate proc_macro;
>     | +++
```
warnings recently.

The former is impossible to fix quickly as needs a migration to `objc2`,
but the latter is easily fixed by a version bump, ergo this PR.

Release Notes:

- N/A