crates: bump serenity from 0.12.2 to 0.12.4 (#62)

Bumps [serenity](https://github.com/serenity-rs/serenity) from 0.12.2 to 0.12.4.
- [Release notes](https://github.com/serenity-rs/serenity/releases)
- [Changelog](https://github.com/serenity-rs/serenity/blob/current/CHANGELOG.md)
- [Commits](https://github.com/serenity-rs/serenity/compare/v0.12.2...v0.12.4)

---
updated-dependencies:
- dependency-name: serenity
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 5ed3e83..2f1edcd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -263,9 +263,9 @@ checksum = "d3fd119d74b830634cea2a0f58bbd0d54540518a14397557951e79340abc28c0"
 
 [[package]]
 name = "command_attr"
-version = "0.5.2"
+version = "0.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "88da8d7e9fe6f30d8e3fcf72d0f84102b49de70fece952633e8439e89bdc7631"
+checksum = "6fcc89439e1bb4e19050a9586a767781a3060000d2f3296fd2a40597ad9421c5"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1641,9 +1641,9 @@ dependencies = [
 
 [[package]]
 name = "serenity"
-version = "0.12.2"
+version = "0.12.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "880a04106592d0a8f5bdacb1d935889bfbccb4a14f7074984d9cd857235d34ac"
+checksum = "3d72ec4323681bf9a3cabe40fd080abc2435859b502a1b5aa9bf693f125bfa76"
 dependencies = [
  "arrayvec",
  "async-trait",