chore: add node 24 in node ci test

Source-Link: googleapis/synthtool@1218bc2
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-nodejs:latest@sha256:66c44f0ad8f6caaa4eb3fbe74f8c2b4de5a97c2b930cee069e712c447723ba95

Author: gcf-owl-bot[bot]

.github/.OwlBot.lock.yaml

@@ -13,5 +13,5 @@
 # limitations under the License.
 docker:
   image: gcr.io/cloud-devrel-public-resources/owlbot-nodejs:latest
-  digest: sha256:da69f1fd77b825b0520b1b0a047c270a3f7e3a42e4d46a5321376281cef6e62b
-# created: 2025-06-02T21:06:54.667555755Z
+  digest: sha256:66c44f0ad8f6caaa4eb3fbe74f8c2b4de5a97c2b930cee069e712c447723ba95
+# created: 2025-07-08T20:57:17.642848562Z

.github/workflows/ci.yaml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node: [18, 20, 22]
+        node: [18, 20, 22, 24]
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4

.github/workflows/issues-no-repro.yaml

@@ -11,7 +11,7 @@ jobs:
       pull-requests: write
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-node@v3
+      - uses: actions/setup-node@v4
         with:
           node-version: 18
       - run: npm install