ci: use a fixed stable on 1.25.x (#5732)

This cherry-picks:
 * chore: remove ntapi dev-dependency
 * time: fix repeatedly_reset_entry_inserted_as_expired test

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ env:
   RUSTFLAGS: -Dwarnings
   RUST_BACKTRACE: 1
   # Change to specific Rust release to pin
-  rust_stable: stable
+  rust_stable: 1.67.1
   rust_nightly: nightly-2022-11-03
   rust_clippy: 1.65.0
   # When updating this, also update:
@@ -349,19 +349,6 @@ jobs:
         with:
           toolchain: ${{ env.rust_min }}
       - uses: Swatinem/rust-cache@v2
-      # First compile just the main tokio crate with minrust and newest version
-      # of all dependencies, then pin once_cell and compile the rest of the
-      # crates with the pinned once_cell version.
-      #
-      # This is necessary because tokio-util transitively depends on once_cell,
-      # which is not compatible with the current minrust after the 1.15.0
-      # release.
-      - name: "check -p tokio --all-features"
-        run: cargo check -p tokio --all-features
-        env:
-          RUSTFLAGS: "" # remove -Dwarnings
-      - name: "pin once_cell version"
-        run: cargo update -p once_cell --precise 1.14.0
       - name: "check --workspace --all-features"
         run: cargo check --workspace --all-features
         env: