* Cargo.toml: Pin protobuf version
The protobuf crate introduced a breaking change within its semver minor
update from 2.8.1 to 2.9.0. This commit ensures Substrate uses anything
within the 2.8 minor releases.
* Cargo.lock: Update
* core/sr-api-macros/Cargo.toml: Pin protobuf version
The protobuf crate introduced a breaking change within its semver minor
update from 2.8.1 to 2.9.0. This commit ensures Substrate uses anything
within the 2.8 minor releases.
* Revert "Cargo.toml: Pin protobuf version"
This reverts commit 4e293c741c5c4510cb1a347c444d1876d65ddb1e.
* core/sr-api-macros/Cargo.toml: Pin protobuf within dev-dependencies
* core/sr-api-macros/Cargo.toml: Add comment and link to Githu issue