Update rust toolchain to 1.80

.gitea/images/Dockerfile

@@ -1,4 +1,4 @@
-FROM docker.io/library/rust:1.79
+FROM docker.io/library/rust:1.80
 
 RUN rustup component add \
   clippy \

.gitea/workflows/gitea-ci.yaml

@@ -13,7 +13,7 @@ env:
 jobs:
   build_and_test:
     name: Build and Test
-    container: docker.io/drrobot/musichoard-ci:rust-1.79
+    container: docker.io/drrobot/musichoard-ci:rust-1.80
     env:
       BEETSDIR: ./
       LLVM_PROFILE_FILE: target/debug/profraw/musichoard-%p-%m.profraw
@@ -48,7 +48,7 @@ jobs:
 
   lint:
     name: Lint
-    container: docker.io/drrobot/musichoard-ci:rust-1.75
+    container: docker.io/drrobot/musichoard-ci:rust-1.80
     steps:
       - uses: actions/checkout@v3
       - run: cargo clippy --no-default-features --all-targets -- -D warnings