Bump rust to 1.88.0

Signed-off-by: Jason Volk <jason@zemos.net>

Cargo.toml

@@ -28,7 +28,7 @@ keywords = [
 license = "Apache-2.0"
 readme = "README.md"
 repository = "https://github.com/matrix-construct/tuwunel"
-rust-version = "1.86.0"
+rust-version = "1.88.0"
 version = "1.2.0"
 
 [workspace.metadata.crane]

rust-toolchain.toml

@@ -9,7 +9,7 @@
 # If you're having trouble making the relevant changes, bug a maintainer.
 
 [toolchain]
-channel = "1.86.0"
+channel = "1.88.0"
 profile = "minimal"
 components = [
     # For rust-analyzer