##### 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
```

if not self._metadata:
            if len(self.versions) > 1:
                return {}
            self._get_metadata()
        dependencies = self._metadata.dependencies
        if dependencies is None:
            return {}
        return dependencies
    def add_requirement(self, parent, requirement):
        self.required_by.append((parent, requirement))
        new_versions = set(v for v in self.versions if self._meets_requirements(v, requirement, parent))
        if len(new_versions) == 0:
            if self.skip:
                force_flag = '--force-with-deps' if parent else '--force'
                version = self.latest_version if self.latest_version != '*' else 'unknown'
                msg = "Cannot meet requirement %s:%s as it is already installed at version '%s'. Use %s to overwrite" \
                      % (to_text(self), requirement, version, force_flag)
                raise AnsibleError(msg)
            elif parent is None:
                msg = "Cannot meet requirement %s for dependency %s" % (requirement, to_text(self))
            else:
                msg = "Cannot meet dependency requirement '%s:%s' for collection %s" \
                      % (to_text(self), requirement, parent)
            collection_source = to_text(self.b_path, nonstring='passthru') or self.api.api_server
            req_by = "\n".join(
                "\t%s - '%s:%s'" % (to_text(p) if p else 'base', to_text(self), r)
                for p, r in self.required_by
            )