ci: Pin time version on MSRV

Reflects what we do in slog-term

Author: Techcable

.github/workflows/test.yml

@@ -63,6 +63,11 @@ jobs:
           cargo check --all-targets --verbose --no-default-features --features "${{ matrix.features }}"
         # A failing `cargo check` always fails the build
         continue-on-error: false
+      # Pin a time version with a compatible MSRV
+      - name: Pin time version
+        if: ${{ matrix.rust != 'nightly' && matrix.rust != 'stable' }}
+        run: |
+          cargo update --package time --precise 0.3.20
       - name: Test
         # NOTE: Running --all-targets does not include doc tests
         run: |