Bump the github-actions-updates group with 2 updates (#3426)

Bumps the github-actions-updates group with 2 updates: [mattermost/actions](https://github.com/mattermost/actions) and [aws-actions/configure-aws-credentials](https://github.com/aws-actions/configure-aws-credentials).


Updates `mattermost/actions` from 2620a83b059b7218192636361299aadde81ae243 to 45f7ef13b5baf0251b3310de92d081f232808b67
- [Commits](2620a83b05...45f7ef13b5)

Updates `aws-actions/configure-aws-credentials` from 4.2.0 to 4.2.1
- [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](f24d7193d9...b475783126)

---
updated-dependencies:
- dependency-name: mattermost/actions
  dependency-version: 45f7ef13b5baf0251b3310de92d081f232808b67
  dependency-type: direct:production
  dependency-group: github-actions-updates
- dependency-name: aws-actions/configure-aws-credentials
  dependency-version: 4.2.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: github-actions-updates
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/nightly-main.yml

@@ -208,7 +208,7 @@ jobs:
         with:
           ref: ${{ env.REFERENCE }}
       - name: nightly/setup-aws-credentials
-        uses: aws-actions/configure-aws-credentials@f24d7193d98baebaeacc7e2227925dd47cc267f5 # v4.2.0
+        uses: aws-actions/configure-aws-credentials@b47578312673ae6fa5b5096b330d9fbac3d116df # v4.2.1
         with:
           aws-region: us-east-1
           aws-access-key-id: ${{ secrets.MM_DESKTOP_RELEASE_AWS_ACCESS_KEY_ID }}