Update ssip; remove syn 1.x dep (#158)

* Update ssip

* Remove MSRV code for node; github doesn't like comments in the YAML

.github/workflows/ci.yml

@@ -173,30 +173,3 @@ jobs:
         uses: codecov/codecov-action@v3
         with:
           fail_ci_if_fail: true
-  #msrv-compliance:
-  #  runs-on: ubuntu-latest
-  #  steps:
-  #    - name: Git checkout
-  #      uses: actions/checkout@v3
-  #    - name: Cache cargo home
-  #      uses: actions/cache@v3
-  #      env:
-  #        cache-name: cache-cargo-home
-  #      with:
-  #        path: |
-  #          ~/.cargo/bin
-  #          ~/.cargo/registry/index
-  #          ~/.cargo/registry/cache
-  #          ~/.cargo/git/db
-  #        key: ${{ runner.os }}-x86_64-unknown-linux-gnu-build-${{ env.cache-name }}-${{ hashFiles('Cargo.lock') }}
-  #        restore-keys: |
-  #          ${{ runner.os }}-x86_64-unknown-linux-gnu-build-${{ env.cache-name }}-
-  #    - name: Install Rust
-  #      uses: dtolnay/rust-toolchain@master
-  #      with:
-  #        toolchain: nightly
-  #    - name: Install Cargo MSRV Verifier
-  #      run: cargo install cargo-msrv --force
-  #    - name: Check MSRV Compliance
-  #      # check msrv compliance *inside* the binary odilia directory instead of the worksapce
-  #      run: cd odilia && cargo msrv verify