build(deps): bump actions/setup-node from 6 to 6.3.0

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 6 to 6.3.0.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@v6...v6.3.0)

---
updated-dependencies:
- dependency-name: actions/setup-node
  dependency-version: 6.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/audit.yml

@@ -17,7 +17,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - name: Setup Node.js
-        uses: actions/setup-node@v6
+        uses: actions/setup-node@v6.3.0
         with:
           node-version: 22.x
           cache: npm

.github/workflows/integration.yml

@@ -17,7 +17,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - name: Setup Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v6
+        uses: actions/setup-node@v6.3.0
         with:
           node-version: ${{ matrix.node-version }}
           cache: npm

.github/workflows/publishing.yml

@@ -16,7 +16,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - name: Setup Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v6
+        uses: actions/setup-node@v6.3.0
         with:
           node-version: ${{ matrix.node-version }}
           cache: npm