Bump typing-extensions from 4.4.0 to 4.6.3 in /rastervision_pipeline

Bumps [typing-extensions](https://github.com/python/typing_extensions) from 4.4.0 to 4.6.3.
- [Changelog](https://github.com/python/typing_extensions/blob/main/CHANGELOG.md)
- [Commits](python/typing_extensions@4.4.0...4.6.3)

---
updated-dependencies:
- dependency-name: typing-extensions
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

rastervision_pipeline/requirements.txt

@@ -1,6 +1,6 @@
 click==8.1.3
 pydantic==1.10.7
-typing_extensions==4.4.0
+typing_extensions==4.6.3
 everett==1.0.3
 everett[ini]==1.0.3
 six==1.16.*