Bug in backport branch release-polkadot-v1.1.0 causes compilation error when metadata-hash feature is enabled

[PanGan21]

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• This is not a support question.

Description of bug

When compiling our node using the release-polkadot-v1.1.0 branch of the Polkadot SDK, with Rust 1.70 and the metadata-hash feature enabled, the compilation fails with the following error related to the visibility of the MetadataExtraInfo struct in the substrate-wasm-builder crate:

error[E0446]: crate-private type `MetadataExtraInfo` in public interface
  --> /Users/username/.cargo/git/checkouts/polkadot-sdk-cff69157b985ed76/e51a91f/substrate/utils/wasm-builder/src/metadata_hash.rs:48:1
   |
48 | pub fn generate_metadata_hash(wasm: &Path, extra_info: MetadataExtraInfo) -> [u8; 32] {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can’t leak crate-private type
   |
  ::: /Users/username/.cargo/git/checkouts/polkadot-sdk-cff69157b985ed76/e51a91f/substrate/utils/wasm-builder/src/builder.rs:26:1
   |
26 | pub(crate) struct MetadataExtraInfo {
   | ----------------------------------- `MetadataExtraInfo` declared as crate-private

The same issue occurs when trying to compile the Polkadot SDK on the release-polkadot-v1.1.0 branch with the metadata-hash feature for the westend-runtime package.
This bug impacts the Energy Web X parachain, as we are unable to compile the SDK with the necessary features for ledger support.

Related to: #4585 #4274

Follow up questions:

• Can this be fixed so that the Energy Web X Parachain can support ledger integration?
• Which other backport branches, if any, are affected by this issue so we don't have to come back to this issue once we upgrade?

Steps to reproduce

1. Checkout to the release-polkadot-v1.1.0 branch of the Polkadot SDK.
2. Ensure that Rust 1.70 is used.
3. Try to compile the westend-runtime with the metadata-hash feature:
   cargo build --locked -p westend-runtime --features metadata-hash

[bkchr]

You need to update your rustc and then the issue should be fixed.

[PanGan21]

After pulling your latest commit and using rustc: 1.80 I can confirm that the issue is fixed.
I hope that next release-polkadot-v1.x.x branches do not contain the same issue.

Thank you for the quick fix @bkchr .