Minor compilation fixes - #1116

use of undeclared identifier 'ETH_TYPE_IP'

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v3. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

2 adjacent parameters of 'dump_timestamp_trace_array' of similar type ('const struct timespec *') are easily swapped by mistake

4 adjacent parameters of 'update_current_timestamp_trace_entry' of similar type ('unsigned long long') are easily swapped by mistake