chore: Update CHANGELOG for v4.0.2 (#763)

- Extend supported `MPL`_ versions to include `v1.11.0`
- Update `CHANGELOG.rst`
- Increase timeout for Codebuild CI and fix local mpl build

Co-authored-by: Lucas McDonald <[email protected]>

Author: imabhichow

.github/workflows/ci_codebuild-tests.yml

@@ -38,10 +38,10 @@ jobs:
         with:
           role-to-assume: ${{ secrets.CI_AWS_ROLE_ARN }}
           aws-region: us-west-2
-          role-duration-seconds: 4200
+          role-duration-seconds: 7200
       - name: Run python-${{ matrix.python.python_version }} ${{ matrix.codebuild_file_name }}
         uses: aws-actions/aws-codebuild-run-build@v1
-        timeout-minutes: 70
+        timeout-minutes: 120
         with:
           project-name: python-esdk
           buildspec-override: codebuild/py${{ matrix.python.python_version }}/${{ matrix.codebuild_file_name }}