##### SUMMARY
When installing a collection, all files are created with mode 0600. This is caused by the way the collection .tar.gz file is extracted: https://github.com/ansible/ansible/blob/d3ec31f8d5683926aa6a05bb573d9929a6266fac/lib/ansible/galaxy/collection.py#L1076-L1090 The file created by `tempfile.NamedTemporaryFile()` seems to have mode `0600` and is simply moved to the final destination without a following `os.chmod`.

(See also this discussion: https://github.com/ansible-collections/community.general/pull/29#discussion_r396147440)

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
lib/ansible/galaxy/collection.py

##### ANSIBLE VERSION
```
2.9
2.10
```

@classmethod
    def setUpClass(cls):
        cls.setUpRole('delete_me_apb', galaxy_args=['--type=apb'])
    def test_metadata_apb_tag(self):
        with open(os.path.join(self.role_dir, 'meta', 'main.yml'), 'r') as mf:
            metadata = yaml.safe_load(mf)
        self.assertIn('apb', metadata.get('galaxy_info', dict()).get('galaxy_tags', []), msg='apb tag not set in role metadata')
    def test_metadata_contents(self):
        with open(os.path.join(self.role_dir, 'meta', 'main.yml'), 'r') as mf:
            metadata = yaml.safe_load(mf)
        self.assertEqual(metadata.get('galaxy_info', dict()).get('author'), 'your name', msg='author was not set properly in metadata')
    def test_apb_yml(self):
        self.assertTrue(os.path.exists(os.path.join(self.role_dir, 'apb.yml')), msg='apb.yml was not created')
    def test_test_yml(self):
        with open(os.path.join(self.role_dir, 'tests', 'test.yml'), 'r') as f:
            test_playbook = yaml.safe_load(f)
        print(test_playbook)
        self.assertEqual(len(test_playbook), 1)
        self.assertEqual(test_playbook[0]['hosts'], 'localhost')
        self.assertFalse(test_playbook[0]['gather_facts'])
        self.assertEqual(test_playbook[0]['connection'], 'local')
        self.assertIsNone(test_playbook[0]['tasks'], msg='We\'re expecting an unset list of tasks in test.yml')
class TestGalaxyInitContainer(unittest.TestCase, ValidRoleTests):
    @classmethod
    def setUpClass(cls):