ci: rotate ec2-github-runner SHA to Phase 7 tip (structured logging) (#185)

namecheap/ec2-github-runner#22 merged. Phase 7 adds JSON-shaped log
events on every lifecycle step, an opt-in 'debug' input, and
core.startGroup/endGroup wrapping so the Actions log collapses
cleanly. No behavior change to the EC2 bootstrap or runner
registration — this is pure action-side observability.

Default-mode output grows by one JSON line per notable event
(~10 lines total for a full start+stop cycle). Setting debug: 'true'
in workflow yaml would add verbose traffic, but that's opt-in.

Rotation: 249efbd (Phase 4 revert) -> b1b8d6d (Phase 7).

Signed-off-by: yuriyryabikov <22548029+kurok@users.noreply.github.com>

Author: kurok

.github/workflows/ci.yml

@@ -140,7 +140,7 @@ jobs:
         # SHA-pinned (was @feat/al2023-support). The same SHA is reused by
         # the stop-runner step so both halves of the runner lifecycle run
         # identical action code.
-        uses: namecheap/ec2-github-runner@249efbdb5306ebc79ecebf864bdb9d5c9c2152b6 # feat/al2023-support @ 2026-04-21 — Phase 4 fully reverted (Phase 1 bootstrap restored)
+        uses: namecheap/ec2-github-runner@b1b8d6d479e2220cc4706af273ee930c60cbeebc # feat/al2023-support @ 2026-04-21 — Phase 7: structured logging + debug input
         with:
           mode: start
           github-token: ${{ secrets.GH_TOKEN }}
@@ -231,7 +231,7 @@ jobs:
       - name: Stop EC2 runner
         # SHA-pinned (was @main). Matches the start-runner step above so
         # stop logic is in lockstep with the code that started the runner.
-        uses: namecheap/ec2-github-runner@249efbdb5306ebc79ecebf864bdb9d5c9c2152b6 # feat/al2023-support @ 2026-04-21 — Phase 4 fully reverted (Phase 1 bootstrap restored)
+        uses: namecheap/ec2-github-runner@b1b8d6d479e2220cc4706af273ee930c60cbeebc # feat/al2023-support @ 2026-04-21 — Phase 7: structured logging + debug input
         with:
           mode: stop
           github-token: ${{ secrets.GH_TOKEN }}