build(deps): bump envoyproxy/toolshed in /gh-actions/github/merge-commit

Bumps [envoyproxy/toolshed](https://github.com/envoyproxy/toolshed) from actions-v0.3.30 to 0.3.31. This release includes the previously tagged commit.
- [Release notes](https://github.com/envoyproxy/toolshed/releases)
- [Commits](actions-v0.3.30...actions-v0.3.31)

---
updated-dependencies:
- dependency-name: envoyproxy/toolshed
  dependency-version: 0.3.31
  dependency-type: direct:production
...

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

Author: dependabot[bot]

gh-actions/github/merge-commit/action.yml

@@ -32,14 +32,14 @@ runs:
     shell: bash
     env:
       URL: https://api.github.com/repos/${{ inputs.repository }}/pulls/${{ inputs.pr }}
-  - uses: envoyproxy/toolshed/gh-actions/jq@actions-v0.3.30
+  - uses: envoyproxy/toolshed/gh-actions/jq@actions-v0.3.31
     id: jq
     with:
       input: ${{ steps.fetch.outputs.response }}
       options: -r
       filter: |
         .merge_commit_sha // ""
-  - uses: envoyproxy/toolshed/gh-actions/jq@actions-v0.3.30
+  - uses: envoyproxy/toolshed/gh-actions/jq@actions-v0.3.31
     if: ${{ ! steps.jq.outputs.value }}
     with:
       input: ${{ steps.fetch.outputs.response }}