Bump aws-actions/configure-aws-credentials from 5 to 6

Bumps [aws-actions/configure-aws-credentials](https://github.com/aws-actions/configure-aws-credentials) from 5 to 6.
- [Release notes](https://github.com/aws-actions/configure-aws-credentials/releases)
- [Changelog](https://github.com/aws-actions/configure-aws-credentials/blob/main/CHANGELOG.md)
- [Commits](aws-actions/configure-aws-credentials@v5...v6)

---
updated-dependencies:
- dependency-name: aws-actions/configure-aws-credentials
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/terraform.yaml

@@ -91,7 +91,7 @@ jobs:
         overwrite: true
 
     - name: Configure AWS credentials
-      uses: aws-actions/configure-aws-credentials@v5
+      uses: aws-actions/configure-aws-credentials@v6
       with:
         aws-region: us-east-1
         role-to-assume: "arn:aws:iam::${{ secrets.AWS_ACCOUNT_ID }}:role/flightdeck-ci"

.github/workflows/tests.yaml

@@ -27,13 +27,13 @@ jobs:
       uses: actions/checkout@v5
 
     - name: Configure AWS credentials
-      uses: aws-actions/configure-aws-credentials@v5
+      uses: aws-actions/configure-aws-credentials@v6
       with:
         aws-region: us-east-1
         role-to-assume: "arn:aws:iam::${{ secrets.AWS_ACCOUNT_ID }}:role/flightdeck-ci"
 
     - name: Assume execution role
-      uses: aws-actions/configure-aws-credentials@v5
+      uses: aws-actions/configure-aws-credentials@v6
       with:
         aws-access-key-id: ${{ env.AWS_ACCESS_KEY_ID }}
         aws-region: us-east-1