Bump step-security/action-slack-notify from 2.3.4 to 2.3.5

Bumps [step-security/action-slack-notify](https://github.com/step-security/action-slack-notify) from 2.3.4 to 2.3.5.
- [Release notes](https://github.com/step-security/action-slack-notify/releases)
- [Commits](step-security/action-slack-notify@cafbebd...e04c77a)

---
updated-dependencies:
- dependency-name: step-security/action-slack-notify
  dependency-version: 2.3.5
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/ghaudit.yaml

@@ -52,7 +52,7 @@ jobs:
         packages: ghaudit
         command: ghaudit org -o ${{ github.repository_owner }} default-permissions
 
-    - uses: step-security/action-slack-notify@cafbebd7b2b3e2f62d6a3cebac172962e7f55c05 # v2.3.4
+    - uses: step-security/action-slack-notify@e04c77a65bae8b6c0373478a1cb8fd7e012637e6 # v2.3.5
       if: ${{ failure() }}
       env:
         SLACK_ICON: http://github.com/chainguard-dev.png?size=48