Bump rtCamp/action-slack-notify in /.github/actions/notifications

Bumps [rtCamp/action-slack-notify](https://github.com/rtcamp/action-slack-notify) from 2.3.0 to 2.3.2.
- [Release notes](https://github.com/rtcamp/action-slack-notify/releases)
- [Commits](rtCamp/action-slack-notify@4e5fb42...c337377)

---
updated-dependencies:
- dependency-name: rtCamp/action-slack-notify
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

.github/actions/notifications/action.yml

@@ -41,7 +41,7 @@ runs:
 
     - name: Slack Notification
       if: inputs.method == 'slack'
-      uses: rtCamp/action-slack-notify@4e5fb42d249be6a45a298f3c9543b111b02f7907
+      uses: rtCamp/action-slack-notify@c33737706dea87cd7784c687dadc9adf1be59990
       env:
         SLACK_CHANNEL: ${{ inputs.channel }}
         SLACK_COLOR: ${{ inputs.color }}