add a clippy lint workflow (that screams at warnings)

CI is gonna be red for a _while_ lmao

.github/workflows/clippy.yml

@@ -0,0 +1,18 @@
+name: clippy
+on:
+  workflow_call:
+
+jobs:
+  run:
+    name: run
+    runs-on: macos-14
+
+    steps:
+    - name: checkout code
+      uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+
+    - name: setup rust
+      run: rustc --version
+
+    - name: run clippy
+      run: cargo clippy --verbose --features all-unstable,all-addons --deny warnings

.github/workflows/publish.yml

@@ -34,6 +34,9 @@ jobs:
     - name: test in release
       run: cargo test --release --verbose --features all,all-addons
 
+  clippy:
+    uses: ./.github/workflows/clippy.yml
+
   feature-check:
     uses: ./.github/workflows/feature-check.yml
 

.github/workflows/test.yml

@@ -64,6 +64,9 @@ jobs:
         files: target/coverage/*.lcov
         token: ${{ secrets.CODECOV_TOKEN }}
 
+  clippy:
+    uses: ./.github/workflows/clippy.yml
+
   feature-check:
     uses: ./.github/workflows/feature-check.yml