chore(rpc/docs): don't push back to repo in gh workflow

.github/workflows/openrpc-docs.yml

@@ -26,8 +26,6 @@ jobs:
           node-version: 16
 
       - uses: actions-rust-lang/setup-rust-toolchain@v1
-        with:
-          toolchain: stable
 
       - name: Rust cache
         uses: swatinem/rust-cache@v2
@@ -117,16 +115,3 @@ jobs:
           # https://github.com/actions/checkout/issues/13#issuecomment-724415212
           user_name: github-actions[bot]
           user_email: 41898282+github-actions[bot]@users.noreply.github.com
-
-      - name: Commit files
-        working-directory: ./
-        run: |
-          git config --local user.email "41898282+github-actions[bot]@users.noreply.github.com"
-          git config --local user.name "github-actions[bot]"
-          git add docs/
-          git commit -a -m "Generate OpenRPC docs"
-      - name: Push changes
-        uses: ad-m/github-push-action@master
-        with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-          branch: ${{ github.ref }}