[CI] Bump up from Node 12

[leecalcote]

Description

Workflow warnings - https://github.com/layer5io/meshery-smp-action/actions/workflows/scheduled-benchmarks.yml

[Scheduled Benchmark Test (linkerd, wrk2, soak-test.yaml)](https://github.com/layer5io/meshery-smp-action/actions/runs/7209647864/job/19641033095)
The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

Expected Behavior

Screenshots/Logs

Environment:

• Meshery Version:
• Kubernetes Version:
• Host OS:
• Browser:

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