chore(workflows): skip deploy when release bot pushes to main

The n3ary release bot opens release/calver-* PRs on every PR merge
to main. The PR auto-merges and lands a version-only commit on main;
the push event then fires with github.actor = n3ary-release-bot[bot].

deploy-production.yml triggers on push: branches: [main] (with
paths-ignore for CHANGELOG.md). It was not filtered to skip the bot,
so it ran on every release bump. The bump commit is a no-op (just
package.json#version), so re-deploying is wasteful.

Add a job-level guard: skip when github.actor ==
"n3ary-release-bot[bot]". Manual workflow_dispatch still works
(actor != bot). The release bot itself never pushes anything other
than a version bump, so this is safe.

Refs: n3ary/standards#22

Author: ciotlosm

.github/workflows/deploy-pwa.yml

@@ -32,6 +32,13 @@ permissions:
 
 jobs:
   deploy:
+    # Skip deploy when the release bot (n3ary-release-bot) is the actor.
+    # The bot's release/calver-* PRs land on main as a squash merge; the
+    # `push` event fires with `github.actor = n3ary-release-bot[bot]`.
+    # Deploying a version-only commit would re-run a deploy whose
+    # artefact is byte-identical to the previous one. The release bot
+    # bumps `package.json#version`; nothing else changes.
+    if: github.actor != 'n3ary-release-bot[bot]'
     runs-on: ubuntu-latest
 
     steps: