[Backport 8.14] Add Node.js 22 to unit test matrix (#2252)

(cherry picked from commit fe2d8c1915)

Co-authored-by: Josh Mock <joshua.mock@elastic.co>

.buildkite/pipeline.yml

@@ -15,6 +15,7 @@ steps:
         nodejs:
           - "18"
           - "20"
+          - "22"
     command: ./.buildkite/run-tests.sh
     artifact_paths: "./junit-output/junit-*.xml"
   - wait: ~
@@ -26,6 +27,6 @@ steps:
     plugins:
       - junit-annotate#v2.4.1:
           artifacts: "junit-output/junit-*.xml"
-          job-uuid-file-pattern: 'junit-(.*).xml'
+          job-uuid-file-pattern: "junit-(.*).xml"
           fail-build-on-error: true
           failure-format: file

.github/workflows/nodejs.yml

@@ -9,7 +9,7 @@ jobs:
     name: Detect files changed
     runs-on: ubuntu-latest
     outputs:
-      src-only: '${{ steps.changes.outputs.src-only }}'
+      src-only: "${{ steps.changes.outputs.src-only }}"
     steps:
       - uses: actions/checkout@v4
       - uses: dorny/paths-filter/@v2.11.1
@@ -30,7 +30,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node-version: [18.x, 20.x]
+        node-version: [18.x, 20.x, 22.x]
         os: [ubuntu-latest, windows-latest, macOS-latest]
 
     steps:
@@ -66,7 +66,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [20.x]
+        node-version: [22.x]
 
     steps:
       - uses: actions/checkout@v3