fix: set metadata-version to 2.1 and remove LICENSE before build

- Set metadata-version to 2.1 to avoid license-file field (2.4+ feature)
- Remove LICENSE file before build to prevent auto-detection
- Simplify build process

Author: xxsc0529

.github/workflows/publish-pyobsql-pypi.yml

@@ -75,15 +75,9 @@ jobs:
       - name: Build package
         working-directory: pyobsql-oceanbase-plugin
         run: |
-          # Temporarily move LICENSE file to prevent hatchling from adding license-file field
-          if [ -f LICENSE ]; then
-            mv LICENSE LICENSE.bak
-          fi
+          # Remove LICENSE file to prevent hatchling from auto-detecting it
+          rm -f LICENSE LICENSE.txt
           python -m build
-          # Restore LICENSE file
-          if [ -f LICENSE.bak ]; then
-            mv LICENSE.bak LICENSE
-          fi
 
       - name: Check package
         working-directory: pyobsql-oceanbase-plugin

pyobsql-oceanbase-plugin/pyproject.toml

@@ -45,16 +45,9 @@ license = {text = "Apache-2.0"}
 
 [tool.hatchling.build]
 packages = ["pyobsql"]
-exclude = [
-    "/LICENSE",
-    "/LICENSE.txt",
-]
 
 [tool.hatch.build.targets.wheel]
-exclude = [
-    "/LICENSE",
-    "/LICENSE.txt",
-]
+metadata-version = "2.1"