Only run clippy on stable

Author: GuillaumeGomez

.github/workflows/CI.yml

@@ -63,9 +63,7 @@ jobs:
         run: cargo build --manifest-path ${{ matrix.conf.name }}/Cargo.toml --features "${{ matrix.conf.features }}"
 
       - run: rustup component add clippy
-        if: matrix.rust == 'beta' || matrix.rust == 'stable'
-      - run: cargo clippy --manifest-path ${{ matrix.conf.name }}/Cargo.toml --features "${{ matrix.conf.features }}" --all-targets
-        if: matrix.rust == 'beta'
+        if: matrix.rust == 'stable'
       - run: cargo clippy --manifest-path ${{ matrix.conf.name }}/Cargo.toml --features "${{ matrix.conf.features }}" --all-targets -- -D warnings
         if: matrix.rust == 'stable'