[#4803] improvement(client-python): Delete egg-info directory due to Python package renamed improvement (#4825)

### What changes were proposed in this pull request?

* Modify `clean` task to delete `apache_gravitino.egg_info`

### Why are the changes needed?

Fix: #4803 

### Does this PR introduce _any_ user-facing change?

No

### How was this patch tested?

./gradlew client:client-python:clean

Co-authored-by: noidname01 <55401762+noidname01@users.noreply.github.com>
Co-authored-by: TimWang <tim.wang@pranaq.com>

Author: 3 people

clients/client-python/build.gradle.kts

@@ -319,7 +319,7 @@ tasks {
     delete("dist")
     delete("docs")
     delete("gravitino/version.ini")
-    delete("gravitino.egg-info")
+    delete("apache_gravitino.egg-info")
     delete("tests/unittests/htmlcov")
     delete("tests/unittests/.coverage")
     delete("tests/integration/htmlcov")