chore(ci): Hack around bad minimal versions

Author: epage

.github/workflows/ci.yml

@@ -81,6 +81,8 @@ jobs:
         toolchain: nightly
     - name: Downgrade dependencies to minimal versions
       run: cargo +nightly generate-lockfile -Z minimal-versions
+    - name: Hack around bad deps
+      run: cargo update --recursive json5
     - name: Compile with minimal versions
       run: cargo +stable check --workspace --all-features --locked
   lockfile: