Try sqlite-utils 4.0rc1 in CI

Also output current sqlite-utils version in pytest headers

Refs https://github.com/simonw/sqlite-utils/issues/758

.github/workflows/test.yml

@@ -11,6 +11,10 @@ jobs:
     strategy:
       matrix:
         python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
+        sqlite-utils-version: [""]
+        include:
+        - python-version: "3.14"
+          sqlite-utils-version: "4.0rc1"
     steps:
     - uses: actions/checkout@v6
     - name: Set up Python ${{ matrix.python-version }}
@@ -26,6 +30,9 @@ jobs:
     - name: Install dependencies
       run: |
         pip install . --group dev
+        if [ -n "${{ matrix.sqlite-utils-version }}" ]; then
+          pip install sqlite-utils==${{ matrix.sqlite-utils-version }}
+        fi
         pip freeze
     - name: Run tests
       run: |