chore(deps): update dtolnay/rust-toolchain requirement to b3b07ba8b418998c39fb20f53e8b695cdcc8de1b#3016

cijothomas merged 3 commits intomainopen-telemetry/opentelemetry-rust:mainfrom

dependabot/github_actions/dtolnay/rust-toolchain-b3b07ba8b418998c39fb20f53e8b695cdcc8de1bopen-telemetry/opentelemetry-rust:dependabot/github_actions/dtolnay/rust-toolchain-b3b07ba8b418998c39fb20f53e8b695cdcc8de1bCopy head branch name to clipboard