Merge pull request #226 from Sh3Rm4n/clippy

Some little CI improvments

Author: Sh3Rm4n

.clippy.toml

@@ -0,0 +1 @@
+msrv = "1.50"

.github/workflows/ci.yml

@@ -49,10 +49,7 @@ jobs:
           target: thumbv7em-none-eabihf
           override: true
           profile: minimal
-      - uses: actions-rs/cargo@v1
-        with:
-          command: check
-          args: --features=${{ matrix.mcu }},ld,${{ matrix.features }} --lib --examples
+      - run: cargo check --features=${{ matrix.mcu }},ld,${{ matrix.features }} --lib --examples
 
   # This is our MSRV. However this is only for documentation
   # purposes and should be increased if newer features are used.
@@ -103,7 +100,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions-rs/toolchain@v1
         with:
-          toolchain: nightly
+          toolchain: stable
           target: thumbv7em-none-eabihf
           override: true
           profile: minimal