http: Make clippy throw errors — radicle-explorer

Instead of failing silently, clippy warnings should be treated as errors and be fixed before merging a patch

           workspaces: radicle-httpd -> target
       - name: Build
         run: cargo build --all-features
         env:
           RUSTFLAGS: -D warnings
       - name: Run tests
         run: cargo test --all-features
   docs:

         with:
           workspaces: radicle-httpd -> target
       - name: Docs
         run: cargo doc --all --all-features
         run: cargo doc --all-features
         env:
           RUSTDOCFLAGS: -D warnings
   lint:
     name: Lint
     runs-on: ubuntu-latest

         with:
           workspaces: radicle-httpd -> target
       - name: Run clippy
         run: cargo clippy --all --tests
         run: cargo clippy --tests
         env:
           RUSTFLAGS: -D warnings
       - name: Check formatting
         run: cargo fmt --all --check
         run: cargo fmt -- --check