Update opentelemetry-proto to remove protoc dependency

Ref: open-telemetry/opentelemetry-rust#881

Author: GeorgeHahn

.github/workflows/release.yml

@@ -82,16 +82,6 @@ jobs:
         run: sudo apt-get update && sudo apt-get install -y musl-tools
         if: matrix.target == 'x86_64-unknown-linux-musl'
 
-      # Install the protobuf compiler for linux builds
-      - name: Install protobuf (Apt)
-        run: sudo apt-get update && sudo apt-get install -y protobuf-compiler
-        if: matrix.os == 'ubuntu-latest'
-
-      # Install the protobuf compiler for mac builds
-      - name: Install protobuf (Brew)
-        run: brew install protobuf
-        if: matrix.os == 'macos-latest'
-
       # Run the build & upload artifacts
       - name: Build and upload lading binaries
         uses: taiki-e/upload-rust-binary-action@v1

CHANGELOG.md

@@ -6,10 +6,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-## [0.11.1-rc1] - 2022-11-22
+## [0.11.1-rc2] - 2022-11-22
 ### Added
 - Releases now include x86-64 musl binaries
 
+### Changed
+- The Protobuf compiler is no longer required to build lading
+
 ## [0.11.0] - 2022-11-16
 ### Added
 - Observer now measures child processes of the target

Cargo.lock

@@ -33,7 +33,7 @@ metrics-exporter-prometheus = { version = "0.11.0", default-features = false, fe
 metrics-util = { version = "0.14" }
 nix = { version = "0.25" }
 once_cell = "1.16"
-opentelemetry-proto = { version = "0.1", features = ["traces", "metrics", "logs", "gen-tonic"] }
+opentelemetry-proto = { git = "https://github.com/open-telemetry/opentelemetry-rust/", rev = "6078e32", features = ["traces", "metrics", "logs", "gen-tonic"] }
 prost = "0.11"
 rand = { version = "0.8", default-features = false, features = ["small_rng", "std", "std_rng"] }
 rdkafka = "0.28"