Django AWS ClientError: An error occurred (403) when calling the HeadObject operation: Forbidden

I am trying to upload my static files to Amazon S3 from my django project using boto3 and django-storages modules. Here is the AWS S3 configurations in my settings.py file

AWS_ACCESS_KEY_ID = "<public-key>"
AWS_SECRET_ACCESS_KEY_ID = "<private-key>"

AWS_STORAGE_BUCKET_NAME = "<bucket-name>"

STORAGES  = {
    # Media files (images) management
    "default": {
        "BACKEND": "storages.backends.s3boto3.S3StaticStorage",
    },
    
    # CSS and JS file management
    "staticfiles": {
        "BACKEND": "storages.backends.s3boto3.S3StaticStorage",
    },
}

AWS_S3_CUSTOM_DOMAIN = f'{AWS_STORAGE_BUCKET_NAME}.s3.amazonaws.com'

AWS_S3_FILE_OVERWRITE = False

I have given AmazonS3FullAccess permission policy to the IAM user.

I have allowed public access to my bucket and here is my bucket policy:

{
    "Version": "2012-10-17",
    "Id": "Policy1706347165594",
    "Statement": [
        {
            "Sid": "Stmt1706347164281",
            "Effect": "Allow",
            "Principal": "*",
            "Action": "s3:*",
            "Resource": "arn:aws:s3:::<bucket-name>/*"
        }
    ]
}

previously I only gave PutObject action it didn't work. I was gettting the same error given below. I'm using the python manage.py collectstatic command to upload to S3

You have requested to collect static files at the destination location as specified in your settings.

This will overwrite existing files!
Are you sure you want to do this?

Type 'yes' to continue, or 'no' to cancel: yes
Traceback (most recent call last):
  File "/home/gajeet/Documents/Django/Django_ultimate/dev2/manage.py", line 22, in <module>
    main()
  File "/home/gajeet/Documents/Django/Django_ultimate/dev2/manage.py", line 18, in main
    execute_from_command_line(sys.argv)
  File "/home/gajeet/Documents/Django/Django_ultimate/dev2/.venv/lib/python3.11/site-packages/django/core/management/__init__.py", line 442, in execute_from_command_line
    utility.execute()
  File "/home/gajeet/Documents/Django/Django_ultimate/dev2/.venv/lib/python3.11/site-packages/django/core/management/__init__.py", line 436, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/home/gajeet/Documents/Django/Django_ultimate/dev2/.venv/lib/python3.11/site-packages/django/core/management/base.py", line 412, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/home/gajeet/Documents/Django/Django_ultimate/dev2/.venv/lib/python3.11/site-packages/django/core/management/base.py", line 458, in execute
    output = self.handle(*args, **options)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/gajeet/Documents/Django/Django_ultimate/dev2/.venv/lib/python3.11/site-packages/django/contrib/staticfiles/management/commands/collectstatic.py", line 209, in handle
    collected = self.collect()
                ^^^^^^^^^^^^^^
  File "/home/gajeet/Documents/Django/Django_ultimate/dev2/.venv/lib/python3.11/site-packages/django/contrib/staticfiles/management/commands/collectstatic.py", line 135, in collect
    handler(path, prefixed_path, storage)
  File "/home/gajeet/Documents/Django/Django_ultimate/dev2/.venv/lib/python3.11/site-packages/django/contrib/staticfiles/management/commands/collectstatic.py", line 368, in copy_file
    if not self.delete_file(path, prefixed_path, source_storage):
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/gajeet/Documents/Django/Django_ultimate/dev2/.venv/lib/python3.11/site-packages/django/contrib/staticfiles/management/commands/collectstatic.py", line 278, in delete_file
    if self.storage.exists(prefixed_path):
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/gajeet/Documents/Django/Django_ultimate/dev2/.venv/lib/python3.11/site-packages/storages/backends/s3.py", line 514, in exists
    self.connection.meta.client.head_object(Bucket=self.bucket_name, Key=name)
  File "/home/gajeet/Documents/Django/Django_ultimate/dev2/.venv/lib/python3.11/site-packages/botocore/client.py", line 553, in _api_call
    return self._make_api_call(operation_name, kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/gajeet/Documents/Django/Django_ultimate/dev2/.venv/lib/python3.11/site-packages/botocore/client.py", line 1009, in _make_api_call
    raise error_class(parsed_response, operation_name)
botocore.exceptions.ClientError: An error occurred (403) when calling the HeadObject operation: Forbidden

Thank you