Bump zope-interface from 7.0.1 to 7.0.3

Bumps [zope-interface](https://github.com/zopefoundation/zope.interface) from 7.0.1 to 7.0.3.
- [Changelog](https://github.com/zopefoundation/zope.interface/blob/master/CHANGES.rst)
- [Commits](zopefoundation/zope.interface@7.0.1...7.0.3)

---
updated-dependencies:
- dependency-name: zope-interface
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -11,4 +11,4 @@ zc.lockfile==3.0.post1
 ZConfig==4.1
 ZODB==6.0
 zodbpickle==4.0
-zope.interface==7.0.1
+zope.interface==7.0.3