Fix minimal package version for parking_lot

.github/workflows/ci.yml

@@ -175,8 +175,13 @@ jobs:
       - if: matrix.msrv == 'MSRV'
         name: Prepare minimal package versions (MSRV only)
         run: |
+          set -x
           cargo update -p indexmap --precise 1.6.2
           cargo update -p hashbrown:0.12.0 --precise 0.9.1
+          PROJECTS=("." "examples/decorator" "examples/maturin-starter" "examples/setuptools-rust-starter" "examples/word-count")
+          for PROJ in ${PROJECTS[@]}; do
+            cargo update --manifest-path "$PROJ/Cargo.toml" -p parking_lot --precise 0.11.0
+          done
 
       - name: Build docs
         run: cargo doc --no-deps --no-default-features --features "full ${{ matrix.extra_features }}"