Fix version tests in CI (#5)

* Fix version tests in CI

Fix version tests in CI by fetching history & tags during checkout so
that setuptools_scm correctly infers the version syntax.

.github/workflows/ci.yml

@@ -22,7 +22,7 @@ jobs:
     runs-on: ${{ matrix.os.runner }}
     steps:
       - uses: actions/checkout@v4
-        with: { submodules: true }
+        with: { fetch-depth: 0, submodules: true }
       - uses: actions/setup-python@v4
       - run: pip install ".[raster,test]" -vv
       - run: pytest -vv
@@ -32,7 +32,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-        with: { submodules: true }
+        with: { fetch-depth: 0, submodules: true }
       - uses: actions/setup-python@v4
         with: { python-version: "3.9" }
       - run: pip install -c ci/min-reqs.txt ".[raster,test]" -vv
@@ -43,7 +43,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-        with: { submodules: true }
+        with: { fetch-depth: 0, submodules: true }
       - uses: actions/setup-python@v4
       - run: pip install ".[test]" -vv
       - run: pytest -vv