Pin version of lock_api when running on MSRV

Author: WorksButNotTested

.github/workflows/main.yml

@@ -59,6 +59,7 @@ jobs:
         cargo update --package=once_cell --precise=1.20.3
         cargo update --package=parking_lot --precise=0.12.3
         cargo update --package=parking_lot_core --precise=0.9.10
+        cargo update --package=lock_api --precise=0.4.12
 
     - run: >
         rustup target add
@@ -541,6 +542,7 @@ jobs:
         cargo update --package=once_cell --precise=1.20.3
         cargo update --package=parking_lot --precise=0.12.3
         cargo update --package=parking_lot_core --precise=0.9.10
+        cargo update --package=lock_api --precise=0.4.12
 
     - run: |
         cargo test --verbose --features=all-apis --release --workspace -- --nocapture