##### 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
```

requirement = req
                op = operator.eq
            
            
            if parent and version == '*' and requirement != '*':
                display.warning("Failed to validate the collection requirement '%s:%s' for %s when the existing "
                                "install does not have a version set, the collection may not work."
                                % (to_text(self), req, parent))
                continue
            elif requirement == '*' or version == '*':
                continue
            if not op(SemanticVersion(version), SemanticVersion.from_loose_version(LooseVersion(requirement))):
                break
        else:
            return True
        
        return False
    @staticmethod
    def from_tar(b_path, force, parent=None):
        if not tarfile.is_tarfile(b_path):
            raise AnsibleError("Collection artifact at '%s' is not a valid tar file." % to_native(b_path))
        info = {}
        with tarfile.open(b_path, mode='r') as collection_tar:
            for b_member_name, property_name in CollectionRequirement._FILE_MAPPING:
                n_member_name = to_native(b_member_name)
                try:
                    member = collection_tar.getmember(n_member_name)
                except KeyError:
                    raise AnsibleError("Collection at '%s' does not contain the required file %s."
                                       % (to_native(b_path), n_member_name))