remove workaround (#1020)

Author: xlc

.github/workflows/coverage.yml

@@ -37,8 +37,6 @@ jobs:
           tar -zxvf cargo-tarpaulin-x86_64-unknown-linux-musl.tar.gz -C $HOME/.cargo/bin
           make Cargo.toml
           cargo update
-          cargo update parity-scale-codec@3.7.2 --precise 3.6.12
-          cargo update parity-scale-codec-derive@3.7.2 --precise 3.6.12
           cargo tarpaulin --verbose --no-fail-fast --workspace --timeout 300 --out Xml
       - name: Upload to codecov.io
         uses: codecov/codecov-action@v3

.github/workflows/test.yml

@@ -36,8 +36,6 @@ jobs:
     - name: Update
       run: |
         cargo update
-        cargo update parity-scale-codec@3.7.2 --precise 3.6.12
-        cargo update parity-scale-codec-derive@3.7.2 --precise 3.6.12
     - name: Run clippy
       run: cargo clippy -- -D warnings
     - name: Check for Wasm