chore(CI): remove cmake/clang-15 install

These are now unnecessary on `ubuntu-latest`

Author: LDeakin

.github/workflows/ci.yml

@@ -18,7 +18,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - run: sudo apt update && sudo apt install -y cmake clang-15
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{ matrix.toolchain }}
@@ -28,15 +27,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - run: sudo apt update && sudo apt install -y cmake clang-15
       - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
       - run: cargo test --all-features
   fmt:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - run: sudo apt update && sudo apt install -y cmake clang-15
       - uses: dtolnay/rust-toolchain@stable
       - run: rustup component add rustfmt
       - uses: Swatinem/rust-cache@v2
@@ -45,7 +42,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - run: sudo apt update && sudo apt install -y cmake clang-15
       - uses: dtolnay/rust-toolchain@stable
       - run: rustup component add clippy
       - uses: Swatinem/rust-cache@v2