|SUCCESS| pw135931 [PATCH] doc: update LTS maintenance to 3 years

[0-day Robot]

From: robot at bytheb.org

Test-Label: github-robot: build
Test-Status: SUCCESS
http://patchwork.dpdk.org/patch/135931/

_github build: passed_
Build URL: https://github.com/ovsrobot/dpdk/actions/runs/7558959340