Daily CI with unpinned deps (#583)

Co-authored-by: Alex Hall <alex.mojaki@gmail.com>

.github/workflows/daily_deps_test.yml

@@ -0,0 +1,62 @@
+name: Daily CI Job
+
+on:
+  schedule:
+    - cron: '0 12 * * *' # Daily at midnight UTC
+
+  # Can be triggered manually from the actions tab, if needed
+  workflow_dispatch:
+
+jobs:
+  test:
+    name: test on Python ${{ matrix.python-version }} and pydantic ${{ matrix.pydantic-version }}
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        pydantic-version: ['main']
+        include:
+          - python-version: '3.12'
+            pydantic-version: '2.4'
+          - python-version: '3.12'
+            pydantic-version: '2.5'
+          - python-version: '3.12'
+            pydantic-version: '2.6'
+          - python-version: '3.12'
+            pydantic-version: '2.7'
+          - python-version: '3.12'
+            pydantic-version: '2.8'
+          - python-version: '3.12'
+            pydantic-version: '2.9'
+    env:
+      PYTHON: ${{ matrix.python-version }}
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Ensure requests to production domains fail
+        if: runner.os == 'Linux'
+        run: |
+            echo "203.0.113.0 logfire.dev" | sudo tee -a /etc/hosts
+            echo "203.0.113.0 logfire-api.pydantic.dev" | sudo tee -a /etc/hosts
+            echo "203.0.113.0 logfire.pydantic.dev" | sudo tee -a /etc/hosts
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v3
+        with:
+          version: "0.4.30"
+          enable-cache: true
+
+        # upgrade deps to the latest versions for this daily test
+      - run: uv sync --python ${{ matrix.python-version }} --upgrade
+
+      - name: Install pydantic ${{ matrix.pydantic-version }}
+        if: matrix.pydantic-version != 'main'
+        # installs the most recent patch on the minor version's track, ex 2.6.0 -> 2.6.4
+        run: uv pip install 'pydantic==${{ matrix.pydantic-version }}.*'
+
+      - run: uv run --no-sync pytest
+
+      - name: Notify on failure
+        if: failure()
+        run: echo "Tests failed. TODO - send notification..."