ci: add clippy-msrv-ci alias

This commit adds a variation of the existing `clippy-ci` alias that only
tests the `--lib` target. This is intended to be used when linting with
the MSRV, where we don't want dev dependencies and other non-essential
code being linted with the MSRV toolchain.

Author: cpu

.cargo/config.toml

@@ -1,2 +1,3 @@
 [alias]
 clippy-ci = "clippy --all-features --all-targets --all"
+clippy-msrv-ci = "clippy --all-features --lib --all" # Only check --lib target w/ MSRV toolchain.

.github/workflows/ci.yml

@@ -79,18 +79,18 @@ jobs:
           rustup target add aarch64-linux-android
 
       - name: Clippy (${{ matrix.os }})
-        run: cargo clippy-ci
+        run: cargo clippy-msrv-ci
 
       - name: Clippy (Android)
         if: matrix.os == 'ubuntu-latest'
         run: |
-          cargo ndk -t arm64-v8a clippy-ci 
+          cargo ndk -t arm64-v8a clippy-msrv-ci
 
       - name: Clippy (iOS)
         if: matrix.os == 'macos-latest'
         run: |
           rustup target add x86_64-apple-ios
-          cargo clippy-ci  --target x86_64-apple-ios
+          cargo clippy-msrv-ci --target x86_64-apple-ios
 
       # TODO: Consider WASM. See note on "clippy" job.