Fix CI workflow syntax for MSRV toolchain and SDL step condition.

Author: leftger

.github/embedded-ci.template.yml

@@ -75,7 +75,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@${{ env.MSRV }}
+      - uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: ${{ env.MSRV }}
       - uses: Swatinem/rust-cache@v2
       - run: cargo check ${{ env.CHECK_ARGS }}
 
@@ -98,7 +100,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
-      - if: env.NEEDS_SDL == 'true'
+      - if: ${{ env.NEEDS_SDL == 'true' }}
         run: sudo apt-get update && sudo apt-get install -y libsdl2-dev
       - run: cargo test ${{ env.TEST_ARGS }}
 
@@ -121,7 +123,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
-      - if: env.NEEDS_SDL == 'true'
+      - if: ${{ env.NEEDS_SDL == 'true' }}
         run: sudo apt-get update && sudo apt-get install -y libsdl2-dev
       - run: cargo build --examples --all-features
 

.github/workflows/ci.yml

@@ -64,7 +64,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@${{ env.MSRV }}
+      - uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: ${{ env.MSRV }}
       - uses: Swatinem/rust-cache@v2
       - run: cargo check ${{ env.CHECK_ARGS }}
 
@@ -88,7 +90,7 @@ jobs:
       - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
       - name: Install SDL2
-        if: env.NEEDS_SDL == 'true'
+        if: ${{ env.NEEDS_SDL == 'true' }}
         run: sudo apt-get update && sudo apt-get install -y libsdl2-dev
       - run: bash .github/scripts/ci_test.sh