Update mwoauth requirement from ~=0.3.8 to ~=0.4.0 (#629)

Updates the requirements on [mwoauth](https://github.com/mediawiki-utilities/python-mwoauth) to permit the latest version.
- [Release notes](https://github.com/mediawiki-utilities/python-mwoauth/releases)
- [Commits](https://github.com/mediawiki-utilities/python-mwoauth/commits)

---
updated-dependencies:
- dependency-name: mwoauth
  dependency-type: direct:production
...

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requirements.txt

@@ -1,5 +1,5 @@
 backoff~=2.2.1
-mwoauth~=0.3.8
+mwoauth~=0.4.0
 oauthlib~=3.2.2
 requests~=2.31.0
 requests-oauthlib~=1.3.1

setup.py

@@ -6,7 +6,7 @@
     name="wikibaseintegrator",
     install_requires=[
         "backoff >= 1.11.1,< 2.3.0",
-        "mwoauth ~= 0.3.8",
+        "mwoauth >= 0.3.8,< 0.5.0",
         "oauthlib ~= 3.2.0",
         "requests >= 2.27.1,< 2.32.0",
         "requests-oauthlib ~= 1.3.1",