Bump dtolnay/rust-toolchain

Bumps [dtolnay/rust-toolchain](https://github.com/dtolnay/rust-toolchain) from 888c2e1ea69ab0d4330cbf0af1ecc7b68f368cc1 to b3b07ba8b418998c39fb20f53e8b695cdcc8de1b.
- [Release notes](https://github.com/dtolnay/rust-toolchain/releases)
- [Commits](dtolnay/rust-toolchain@888c2e1...b3b07ba)

---
updated-dependencies:
- dependency-name: dtolnay/rust-toolchain
  dependency-version: b3b07ba8b418998c39fb20f53e8b695cdcc8de1b
  dependency-type: direct:production
...

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Author: dependabot[bot]

.github/workflows/codeql.yaml

@@ -38,7 +38,7 @@ jobs:
           path: yara-x
           ref: refs/tags/v0.15.0
       - name: Install Rust for yara-x-capi
-        uses: dtolnay/rust-toolchain@888c2e1ea69ab0d4330cbf0af1ecc7b68f368cc1
+        uses: dtolnay/rust-toolchain@b3b07ba8b418998c39fb20f53e8b695cdcc8de1b
         with:
           toolchain: stable
       - name: Install cargo-c and yara-x-capi