ci: Temporarily disable nextest-related to avoid upstream bug

```
error: failed to parse messages generated by Cargo

Caused by:
  error querying package graph

Caused by:
  unknown package ID: bin_crate 0.0.0 (path+file:///home/runner/work/cargo-llvm-cov/cargo-llvm-cov/tests/fixtures/crates/bin_crate)
error: process didn't exit successfully: `/home/runner/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/bin/cargo nextest run --manifest-path /home/runner/work/cargo-llvm-cov/cargo-llvm-cov/tests/fixtures/crates/bin_crate/Cargo.toml --target-dir /home/runner/work/cargo-llvm-cov/cargo-llvm-cov/tests/fixtures/crates/bin_crate/target/llvm-cov-target` (exit status: 104)
```

.github/workflows/ci.yml

@@ -76,21 +76,22 @@ jobs:
       - run: cargo test --workspace --all-features
       # TODO: move this test to tests/test.rs
       - run: cargo install --path . --debug
-      - run: |
-          set -eEuxo pipefail
-          cargo llvm-cov nextest --text --fail-under-lines 50
-          cargo llvm-cov nextest --text --fail-under-lines 50 --profile default --cargo-profile dev
-          cargo llvm-cov nextest --text --fail-under-lines 50 --profile ci
-          cargo llvm-cov nextest --text --fail-under-lines 50 --profile ci --cargo-profile dev
-          cd ../real1
-          cargo llvm-cov nextest-archive --archive-file a.tar.zst
-          cargo llvm-cov nextest --archive-file a.tar.zst --text --fail-under-lines 70
-          rm a.tar.zst
-          cargo clean
-          host=$(rustc -Vv | grep host | sed 's/host: //')
-          cargo llvm-cov nextest-archive --archive-file a.tar.zst --target "${host}"
-          cargo llvm-cov nextest --archive-file a.tar.zst --text --fail-under-lines 70 --target "${host}"
-        working-directory: tests/fixtures/crates/bin_crate
+      # TODO: cargo bug: https://github.com/nextest-rs/nextest/issues/1232
+      # - run: |
+      #     set -eEuxo pipefail
+      #     cargo llvm-cov nextest --text --fail-under-lines 50
+      #     cargo llvm-cov nextest --text --fail-under-lines 50 --profile default --cargo-profile dev
+      #     cargo llvm-cov nextest --text --fail-under-lines 50 --profile ci
+      #     cargo llvm-cov nextest --text --fail-under-lines 50 --profile ci --cargo-profile dev
+      #     cd ../real1
+      #     cargo llvm-cov nextest-archive --archive-file a.tar.zst
+      #     cargo llvm-cov nextest --archive-file a.tar.zst --text --fail-under-lines 70
+      #     rm a.tar.zst
+      #     cargo clean
+      #     host=$(rustc -Vv | grep host | sed 's/host: //')
+      #     cargo llvm-cov nextest-archive --archive-file a.tar.zst --target "${host}"
+      #     cargo llvm-cov nextest --archive-file a.tar.zst --text --fail-under-lines 70 --target "${host}"
+      #   working-directory: tests/fixtures/crates/bin_crate
       - run: |
           set -eEuxo pipefail
           git clone --depth 1 https://github.com/taiki-e/easytime.git