Start a new workflow and python script that checks version

This workflow is intended to verify that the version in the branch
being merged is higher than the main branch. This is definitely
not working and I'm not sure I even want to implement this this way.

.github/workflows/check_version.yml

@@ -0,0 +1,36 @@
+name: hatch-tests
+
+on:
+  pull_request:
+    branches: [ "master", "main" ]
+    paths-ignore: [ "docs/**" ]
+
+  push:
+    branches: [ "master", "main" ]
+    paths-ignore: [ "docs/**" ]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout current version
+        uses: actions/checkout@v4
+        path: "current"
+
+      - name: Checkout main version
+        uses: actions/checkout@v4
+        ref: "main"
+        path: "main"
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.11"
+
+      - name: Compare versions

.github/workflows/check_versions.py

@@ -0,0 +1,33 @@
+import argparse
+import importlib
+import sys
+
+from packaging import version
+
+parser = argparse.ArgumentParser(
+    prog="compare_versions",
+    description="Check that the version of the updated path is higher than the version of the main path.",
+)
+parser.add_argument("--main")
+parser.add_argument("--updated")
+argv = parser.parse_args()
+
+# Read in main version
+sys.path.insert(0, argv.main)
+import anvil_consortium_manager  # noqa: E402
+
+main_version = version.parse(anvil_consortium_manager.__version__)
+print("Main version: " + str(main_version))
+
+# Read in current version
+
+sys.path.insert(0, argv.updated)
+importlib.reload(anvil_consortium_manager)
+
+current_version = version.parse(anvil_consortium_manager.__version__)
+print("Updated version: " + str(current_version))
+
+if current_version <= main_version:
+    raise Exception("Updated version is less than or equal to the main version.")
+
+print("Ok!")