Update setup.py

Bump up the version.
Extended the compatible version for numba.

setup.py

@@ -14,10 +14,10 @@
 EMAIL = "armant2@illinois.edu"
 AUTHOR = "GazzolaLab"
 REQUIRES_PYTHON = ">=3.5.0"
-VERSION = "0.2.0.post1"
+VERSION = "0.2.1"
 
 # What packages are required for this module to be executed?
-REQUIRED = ["numpy>=1.19.2", "matplotlib>=3.3.2", "scipy>=1.5.2", "tqdm>=4.61.1", "numba==0.51.0"]
+REQUIRED = ["numpy>=1.19.2", "matplotlib>=3.3.2", "scipy>=1.5.2", "tqdm>=4.61.1", "numba>=0.51.0"]
 
 # What packages are optional?
 EXTRAS = {
@@ -108,11 +108,11 @@ def run(self):
         "Intended Audience :: Science/Research",
         "Intended Audience :: Education",
     ],
-    download_url="https://github.com/GazzolaLab/PyElastica/archive/refs/tags/0.2.0.post1.tar.gz",
+    download_url="https://github.com/GazzolaLab/PyElastica/archive/refs/tags/0.2.1.tar.gz",
     install_requires=REQUIRED,
     extras_require=EXTRAS,
     # $ setup.py publish support: We don't know how to use this part. We already know how to publish.!
-    #cmdclass={
-    #    'upload': UploadCommand,
-    #},
+    cmdclass={
+        'upload': UploadCommand,
+    },
 )