chore: fix rust fmt

.github/workflows/main.yml

@@ -57,6 +57,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v4
+      - uses: Noelware/setup-protoc@1.1.0
       - uses: dtolnay/rust-toolchain@stable
         with:
           components: clippy
@@ -81,6 +82,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
+      - uses: Noelware/setup-protoc@1.1.0
       - uses: Swatinem/rust-cache@v2
         with:
           prefix-key: "v0-rust-ubuntu-20.04"

scripts/clippy.sh

@@ -1,3 +1,3 @@
 #!/bin/bash
 
-cargo clippy "$@" --all-targets --all-features 
+cargo clippy "$@" --all-targets --all-features

scripts/rust_fmt.sh

@@ -1,3 +1,7 @@
 #!/bin/bash
 
-cargo +nightly-2024-01-12 fmt --all -- "$@"
+# Install toolchain if missing (local run).
+TOOLCHAIN="nightly-2024-04-29"
+rustup toolchain list | grep -q ${TOOLCHAIN} || rustup toolchain install ${TOOLCHAIN}
+
+cargo +${TOOLCHAIN} fmt --all -- "$@"