protocol: Use pastey fork

The `paste` crate is no longer maintained, and the `pastey` fork is a
drop-in replacement.

`cargo deny check` output:
```
error[unmaintained]: paste - no longer maintained
    ┌─ /home/fintohaps/Developer/heartwood/Cargo.lock:239:1
    │
239 │ paste 1.0.15 registry+https://github.com/rust-lang/crates.io-index
    │ ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ unmaintained advisory detected
    │
    ├ ID: RUSTSEC-2024-0436
    ├ Advisory: https://rustsec.org/advisories/RUSTSEC-2024-0436
    ├ The creator of the crate `paste` has stated in the [`README.md`](https://github.com/dtolnay/paste/blob/master/README.md) 
      that this project is not longer maintained as well as archived the repository
      
      ## Possible Alternative(s)
      
      - [`pastey`]: a fork of paste and is aimed to be a drop-in replacement with additional features for paste crate
      - [`with_builtin_macros`]: crate providing a [superset of `paste`'s functionality including general `macro_rules!` eager expansions](https://docs.rs/with_builtin_macros/0.1.0/with_builtin_macros/macro.with_eager_expansions.html)  and `concat!`/`concat_idents!` macros
      
      [`pastey`]: https://crates.io/crates/pastey
      [`with_builtin_macros`]: https://crates.io/crates/with_builtin_macros
    ├ Announcement: https://github.com/dtolnay/paste
    ├ Solution: No safe upgrade is available!
    ├ paste v1.0.15
      └── (dev) radicle-protocol v0.6.0
          └── radicle-node v0.18.0
              └── (dev) radicle-cli v0.19.0
                  └── radicle-remote-helper v0.15.0
```

Cargo.lock

@@ -2698,10 +2698,10 @@ dependencies = [
 ]
 
 [[package]]
-name = "paste"
-version = "1.0.15"
+name = "pastey"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "57c0d7b74b563b49d38dae00a0c37d4d6de9b432382b2892f0574ddcae73fd0a"
+checksum = "b867cad97c0791bbd3aaa6472142568c6c9e8f71937e98379f584cfb0cf35bec"
 
 [[package]]
 name = "pbkdf2"
@@ -3278,7 +3278,7 @@ dependencies = [
  "fastrand",
  "log",
  "nonempty",
- "paste",
+ "pastey",
  "qcheck",
  "qcheck-macros",
  "radicle",

crates/radicle-protocol/Cargo.toml

@@ -32,7 +32,7 @@ serde_json = { workspace = true, features = ["preserve_order"] }
 thiserror = { workspace = true, default-features = true }
 
 [dev-dependencies]
-paste = "1.0.15"
+pastey = "0.2"
 qcheck = { workspace = true }
 qcheck-macros = { workspace = true }
 radicle = { workspace = true, features = ["test"] }

crates/radicle-protocol/src/wire.rs

@@ -561,7 +561,7 @@ where
 #[macro_export]
 macro_rules! prop_roundtrip {
     ($t:ty, $name:tt) => {
-        paste::paste! {
+        pastey::paste! {
             #[quickcheck]
             fn [< prop_roundtrip_ $name:lower >](v: $t) {
                 $crate::wire::roundtrip(v);
@@ -569,7 +569,7 @@ macro_rules! prop_roundtrip {
         }
     };
     ($t:ty) => {
-        paste::paste! {
+        pastey::paste! {
             prop_roundtrip!($t, [< $t >]);
         }
     };