Upgrade Rust toolchain to 1.80.0

This also tweaks the workspace-level lints configuration to add priority
on groups

.github/workflows/ci.yaml

@@ -195,8 +195,8 @@ jobs:
 
       - name: Install toolchain
         run: |
-          rustup toolchain install 1.78.0
-          rustup default 1.78.0
+          rustup toolchain install 1.80.0
+          rustup default 1.80.0
           rustup component add clippy
 
       - name: Setup OPA

Cargo.toml

@@ -16,8 +16,9 @@ package.repository = "https://github.com/matrix-org/matrix-authentication-servic
 unsafe_code = "forbid"
 
 [workspace.lints.clippy]
-all = "deny"
-pedantic = "warn"
+# We use groups as good defaults, but with a lower priority so that we can override them
+all = { level = "deny", priority = -1 }
+pedantic = { level = "warn", priority = -1 }
 
 str_to_string = "deny"
 

Dockerfile

@@ -8,7 +8,7 @@
 # The Debian version and version name must be in sync
 ARG DEBIAN_VERSION=12
 ARG DEBIAN_VERSION_NAME=bookworm
-ARG RUSTC_VERSION=1.78.0
+ARG RUSTC_VERSION=1.80.0
 # XXX: Upgrade to 0.10.0 blocked by https://github.com/ziglang/zig/issues/10915#issuecomment-1354548110
 # XXX: Upgrade to 0.11.0 blocked by https://github.com/rust-cross/cargo-zigbuild/issues/162
 ARG ZIG_VERSION=0.9.1