CI: path-ignore parity on push-triggered workflows (docs/.assets/md)

[ChrisonSimtian]

ubuntu-latest and edge skip docs/**, .assets/**, **/*.md, but windows-latest, macos-latest, and release do not. A docs-only commit on a release/*/support/* branch currently triggers a full cross-platform build.

Add the canonical ignore list to the push triggers of those workflows (and the [GitHubActions] generator). Coupled to the canonical-exclusion-list task.

Low-risk quick win.

[ChrisonSimtian]

Done in #330 — canonical CI-ignore list (docs/, .assets/, **/*.md) applied across PR/push triggers.