Bump rust version to help woodpecker out

.woodpecker.yml

@@ -8,13 +8,13 @@ pipeline:
       - "cargo build --verbose"
       - "cargo clippy --workspace --tests --all-targets --all-features"
       - "cargo test --workspace --no-fail-fast"
-    image: "rust:latest"
+    image: "rust:1.77-buster"
     when:
       event: pull_request, push
   build:
     commands:
       - "cargo build --release"
-    image: "rust:latest"
+    image: "rust:1.77-buster"
     when:
       branch: main
       event: push