ci: add job to check cargo doc

Author: oleonardolima

.github/workflows/cont_integration.yml

@@ -146,3 +146,18 @@ jobs:
       - name: Clippy
         run: cargo clippy --all-features --all-targets -- -D warnings
 
+  docs_check:
+    name: Check cargo doc
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+        with:
+          persist-credentials: false
+      # This action automatically reads and applies rust-toolchain.toml
+      - name: Install Rust toolchain
+        uses: actions-rust-lang/setup-rust-toolchain@v1
+        with:
+          cache: true
+      - name: Check docs
+        run: RUSTDOCFLAGS='-D warnings' cargo doc --workspace --no-deps

justfile

@@ -3,6 +3,7 @@ alias c := check
 alias f := fmt
 alias t := test
 alias p := pre-push
+alias d := doc
 
 _default:
    @just --list
@@ -28,5 +29,9 @@ fmt:
 test:
    cargo test --all-features
 
+# Check docs on the workspace
+doc:
+   RUSTDOCFLAGS='-D warnings' cargo doc --workspace --no-deps
+
 # Run pre-push suite: format, check, and test
-pre-push: fmt check test
+pre-push: fmt check test doc