Bump actions/setup-node in /.github/actions/release-initialise

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 6.4.0 to 7.1.0.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](48b55a011b...949feb2413)

---
updated-dependencies:
- dependency-name: actions/setup-node
  dependency-version: 7.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/actions/release-initialise/action.yml

@@ -16,7 +16,7 @@ runs:
       shell: bash
 
     - name: Set up Node
-      uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+      uses: actions/setup-node@949feb2413d6458794dcd2491c4babbbce0c15c1 # v7.1.0
       with:
         node-version: 24
         cache: 'npm'