CI: Don't test benchmarks in test and test-features jobs.

Benchmarks require Rust 1.65 or later currently due to benchmark-only
dependencies.

Also, benchmarks add a lot of downloading/build time because they have
many more dependencies. So, skipping them in these jobs makes them
faster.

.github/workflows/ci.yml

@@ -297,11 +297,11 @@ jobs:
 
       - if: ${{ !contains(matrix.host_os, 'windows') }}
         run: |
-          mk/cargo.sh test -vv --all-targets --target=${{ matrix.target }} ${{ matrix.cargo_options }} ${{ matrix.features }} ${{ matrix.mode }}
+          mk/cargo.sh test -vv --target=${{ matrix.target }} ${{ matrix.cargo_options }} ${{ matrix.features }} ${{ matrix.mode }}
 
       - if: ${{ contains(matrix.host_os, 'windows') }}
         run: |
-          cargo test -vv --all-targets --target=${{ matrix.target }} ${{ matrix.cargo_options }} ${{ matrix.features }} ${{ matrix.mode }}
+          cargo test -vv --target=${{ matrix.target }} ${{ matrix.cargo_options }} ${{ matrix.features }} ${{ matrix.mode }}
 
       # --all-targets doesn't run doctests: https://github.com/rust-lang/cargo/issues/6669
       # Run doctests only on x86_64 to avoid cross-compilation hassles with `--no-run`.
@@ -408,11 +408,11 @@ jobs:
 
       - if: ${{ !contains(matrix.host_os, 'windows') }}
         run: |
-          mk/cargo.sh test -vv --all-targets --target=${{ matrix.target }} ${{ matrix.cargo_options }} ${{ matrix.features }} ${{ matrix.mode }}
+          mk/cargo.sh test -vv --target=${{ matrix.target }} ${{ matrix.cargo_options }} ${{ matrix.features }} ${{ matrix.mode }}
 
       - if: ${{ contains(matrix.host_os, 'windows') }}
         run: |
-          cargo test -vv --all-targets --target=${{ matrix.target }} ${{ matrix.cargo_options }} ${{ matrix.features }} ${{ matrix.mode }}
+          cargo test -vv --target=${{ matrix.target }} ${{ matrix.cargo_options }} ${{ matrix.features }} ${{ matrix.mode }}
 
       # --all-targets doesn't run doctests: https://github.com/rust-lang/cargo/issues/6669
       # Run doctests only on x86_64 to avoid cross-compilation hassles with `--no-run`.