fix: restore PEP 621 license table for py38 build backend

Author: jgarciab

.github/workflows/ci.yml

@@ -17,6 +17,8 @@ jobs:
     steps:
     - name: Check out repository
       uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
 
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v5

pyproject.toml

@@ -21,7 +21,7 @@ dependencies = [
 readme = "README.md"
 requires-python = ">=3.8"
 keywords = ["mode detection", "remode", "ordinal data", "modality", "maximum detection"]
-license = "MIT"
+license = { file = "LICENSE" }
 
 dynamic = ["version"]