⬆️ Update actions-rust-lang/setup-rust-toolchain action to v1.15.4 (#1459)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/ci.yml

@@ -87,7 +87,7 @@ jobs:
       - name: 🏗 Install uv and Python
         uses: astral-sh/setup-uv@eac588ad8def6316056a12d4907a9d4d84ff7a3b # v7.3.0
 
-      - uses: actions-rust-lang/setup-rust-toolchain@1780873c7b576612439a134613cc4cc74ce5538c # v1.15.2
+      - uses: actions-rust-lang/setup-rust-toolchain@150fca883cd4034361b621bd4e6a9d34e5143606 # v1.15.4
         with:
           cache-key: ${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('Cargo.lock') }}
 
@@ -111,7 +111,7 @@ jobs:
     steps:
       - name: ⤵️ Checkout repository
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - uses: actions-rust-lang/setup-rust-toolchain@1780873c7b576612439a134613cc4cc74ce5538c # v1.15.2
+      - uses: actions-rust-lang/setup-rust-toolchain@150fca883cd4034361b621bd4e6a9d34e5143606 # v1.15.4
         with:
           components: rustfmt,clippy
       - name: Rust format
@@ -152,7 +152,7 @@ jobs:
         id: setup-python
       - name: 🏗 Install uv and Python
         uses: astral-sh/setup-uv@eac588ad8def6316056a12d4907a9d4d84ff7a3b # v7.3.0
-      - uses: actions-rust-lang/setup-rust-toolchain@1780873c7b576612439a134613cc4cc74ce5538c # v1.15.2
+      - uses: actions-rust-lang/setup-rust-toolchain@150fca883cd4034361b621bd4e6a9d34e5143606 # v1.15.4
         with:
           components: llvm-tools
           cache-key: ${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('Cargo.lock') }}