ci: separate nightly lints to separate job

(cherry picked from commit 1fdd1d250c)

.github/workflows/ci.yml

@@ -32,6 +32,7 @@ jobs:
         uses: actions-rust-lang/setup-rust-toolchain@v1
         with:
           toolchain: stable
+          components: clippy, rustfmt
 
       - name: Set up nightly Rust toolchain
         uses: actions-rust-lang/setup-rust-toolchain@v1
@@ -44,6 +45,11 @@ jobs:
           make lint
           make lint-web
 
+      - name: Lint files (Rust nightly)
+        continue-on-error: true
+        run: |
+          make lint-nightly
+
   sanitize:
     uses: ./.github/workflows/sanitize.yml