Bump the major-updates group with 2 updates

Bumps the major-updates group with 2 updates: [backoff](https://github.com/litl/backoff) and [singer-python](http://singer.io).


Updates `backoff` from 1.8.0 to 2.2.1
- [Release notes](https://github.com/litl/backoff/releases)
- [Changelog](https://github.com/litl/backoff/blob/master/CHANGELOG.md)
- [Commits](litl/backoff@v1.8.0...v2.2.1)

Updates `singer-python` from 5.9.0 to 6.0.0

---
updated-dependencies:
- dependency-name: backoff
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: major-updates
- dependency-name: singer-python
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: major-updates
...

Signed-off-by: dependabot[bot] <[email protected]>

setup.py

@@ -10,9 +10,9 @@
     classifiers=["Programming Language :: Python :: 3 :: Only"],
     py_modules=["tap_wrike"],
     install_requires=[
-        "backoff==1.8.0",
+        "backoff==2.2.1",
         "requests==2.31.0",
-        "singer-python==5.9.0",
+        "singer-python==6.0.0",
     ],
     entry_points="""
     [console_scripts]