change region to solve s3 issues (#8117)

# Description

Changing region because of s3 issues with us-west-2

## Type of change

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Fixes: #issue_number

## Contributor checklist
Please verify that the PR meets the following requirements, where
applicable:

- [ ] An overview of proposed schema changes is included in a linked
GitHub issue.
- [ ] A design document PR is created in the [design-notes
repository](https://github.com/radius-project/design-notes/), if new
APIs are being introduced.
- [ ] If applicable, design document has been reviewed and approved by
Radius maintainers/approvers.
- [ ] A PR for the [samples
repository](https://github.com/radius-project/samples) is created, if
existing samples are affected by the changes in this PR.
- [ ] A PR for the [documentation
repository](https://github.com/radius-project/docs) is created, if the
changes in this PR affect the documentation or any user facing updates
are made.
- [ ] A PR for the [recipes
repository](https://github.com/radius-project/recipes) is created, if
existing recipes are affected by the changes in this PR.

.github/workflows/functional-test-cloud.yaml

@@ -74,7 +74,7 @@ env:
   # The Radius helm chart location.
   RADIUS_CHART_LOCATION: deploy/Chart/
   # The region for AWS resources
-  AWS_REGION: "us-west-2"
+  AWS_REGION: "us-west-1"
   # The AWS account ID
   AWS_ACCOUNT_ID: "${{ secrets.FUNCTEST_AWS_ACCOUNT_ID }}"
   # The current GitHub action link