chore(workflows): bump gh-aw to v0.86.2 (stable) and v0.87.1 (standalone smokes) (#915)

Regenerate compiled locks to clear the drift reported in #902 and the
stale lock on gh-aw-parity-monitor reported in #899:

- detection-stats-daily.lock.yml:      v0.81.6 -> v0.86.2
- gh-aw-parity-monitor.lock.yml:       recompiled at v0.86.2 (fixes stale lock)
- smoke-claude-standalone.lock.yml:    v0.87.0 -> v0.87.1
- smoke-codex-standalone.lock.yml:     v0.87.0 -> v0.87.1
- smoke-copilot-standalone.lock.yml:   v0.87.0 -> v0.87.1

Also refreshes .github/aw/actions-lock.json and .gitattributes as
emitted by the compiler.

Co-authored-by: GitHub Ace <githubnext@users.noreply.github.com>
Co-authored-by: David Slater <12449447+davidslater@users.noreply.github.com>

Author: davidslater

.gitattributes

@@ -1,2 +1,2 @@
-.github/workflows/*.lock.yml linguist-generated=true merge=ours
+.github/workflows/*.lock.yml linguist-generated=true
 .github/workflows/*-container.md linguist-generated=true merge=ours

.github/aw/actions-lock.json

@@ -5,10 +5,10 @@
       "version": "v9.0.0",
       "sha": "3a2844b7e9c422d3c10d287c895573f7108da1b3"
     },
-    "github/gh-aw-actions/setup@v0.81.6": {
+    "github/gh-aw-actions/setup@v0.87.1": {
       "repo": "github/gh-aw-actions/setup",
-      "version": "v0.81.6",
-      "sha": "ba6380cc6e5be5d21677bebe04d52fb48e3abec7"
+      "version": "v0.87.1",
+      "sha": "423b3dc04bbf1b1797194a4a75aa5cf5d0d4f5b3"
     }
   }
 }