Bump actions/setup-node from 4 to 6

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 4 to 6.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@v4...v6)

---
updated-dependencies:
- dependency-name: actions/setup-node
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/build-linux.yml

@@ -37,7 +37,7 @@ jobs:
         cache-dependency-path: 'build/python/requirements.txt'
         cache: 'pip'
 
-    - uses: actions/setup-node@v4
+    - uses: actions/setup-node@v6
       with:
         node-version: 20
         cache: 'npm'

.github/workflows/build-windows-legacy.yml

@@ -68,7 +68,7 @@ jobs:
         cache-dependency-path: 'build/python/requirements.txt'
         cache: 'pip'
 
-    - uses: actions/setup-node@v4
+    - uses: actions/setup-node@v6
       with:
         node-version: 20
         cache: 'npm'
@@ -294,7 +294,7 @@ jobs:
           cache-dependency-path: 'build/python/requirements.txt'
           cache: 'pip'
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v6
         with:
           node-version: 20
           cache: 'npm'

.github/workflows/build-windows.yml

@@ -68,7 +68,7 @@ jobs:
         cache-dependency-path: 'build/python/requirements.txt'
         cache: 'pip'
 
-    - uses: actions/setup-node@v4
+    - uses: actions/setup-node@v6
       with:
         node-version: 20
         cache: 'npm'
@@ -311,7 +311,7 @@ jobs:
           cache-dependency-path: 'build/python/requirements.txt'
           cache: 'pip'
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v6
         with:
           node-version: 20
           cache: 'npm'