Ensure warnings are enabled for all CI jobs

Author: nicholasbishop

.github/workflows/ci.yaml

@@ -9,6 +9,10 @@ on:
 
 name: CI
 
+env:
+  RUSTDOCFLAGS: -Dwarnings
+  RUSTFLAGS: -Dwarnings
+
 jobs:
   msrv:
     runs-on: ubuntu-latest
@@ -76,16 +80,14 @@ jobs:
     steps:
       - uses: actions/checkout@v5
       - uses: Swatinem/rust-cache@v2
-      - run: cargo clippy -- -D warnings
+      - run: cargo clippy
 
   doc:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v5
       - uses: Swatinem/rust-cache@v2
       - run: cargo doc
-        env:
-          RUSTDOCFLAGS: -Dwarnings
 
   cargo-deny:
     runs-on: ubuntu-latest