cargo: bump axum from 0.6.12 to 0.6.18

Bumps [axum](https://github.com/tokio-rs/axum) from 0.6.12 to 0.6.18.
- [Release notes](https://github.com/tokio-rs/axum/releases)
- [Changelog](https://github.com/tokio-rs/axum/blob/main/CHANGELOG.md)
- [Commits](https://github.com/tokio-rs/axum/compare/axum-v0.6.12...axum-v0.6.18)

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

Signed-off-by: dependabot[bot] <support@github.com>

Cargo.lock

@@ -306,9 +306,9 @@ checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
 
 [[package]]
 name = "axum"
-version = "0.6.12"
+version = "0.6.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "349f8ccfd9221ee7d1f3d4b33e1f8319b3a81ed8f61f2ea40b37b859794b4491"
+checksum = "f8175979259124331c1d7bf6586ee7e0da434155e4b2d48ec2c8386281d8df39"
 dependencies = [
  "async-trait",
  "axum-core",
@@ -341,9 +341,9 @@ dependencies = [
 
 [[package]]
 name = "axum-core"
-version = "0.3.3"
+version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2f958c80c248b34b9a877a643811be8dbca03ca5ba827f2b63baf3a81e5fc4e"
+checksum = "759fa577a247914fd3f7f76d62972792636412fbfd634cd452f6a385a74d2d2c"
 dependencies = [
  "async-trait",
  "bytes",

deltachat-jsonrpc/Cargo.toml

@@ -29,7 +29,7 @@ walkdir = "2.3.3"
 base64 = "0.21"
 
 # optional dependencies
-axum = { version = "0.6.12", optional = true, features = ["ws"] }
+axum = { version = "0.6.18", optional = true, features = ["ws"] }
 env_logger = { version = "0.10.0", optional = true }
 
 [dev-dependencies]