Add option to push behavior + behavior script logs to Redis (#805)

Fixes #804 

- Site-specific behaviors use behaviorScriptCustom log context (via browsertrix-behaviors 0.8.3)
- Add behavior logs to redis if --logBehaviorsToRedis is set, including non-debug behaviors / behaviorsScript context and all behaviorScriptCustom logs
- Noisy logs from built-in behaviors like autoscroll are now logged to
debug in https://github.com/webrecorder/browsertrix-behaviors/pull/92
and so won't be pushed to Redis for newer versions of the crawler.
- Updates browsertrix-behaviors to 0.8.3 and makes some changes to
log format in tests accordingly.

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Co-authored-by: Ilya Kreymer <ikreymer@gmail.com>

package.json

@@ -18,7 +18,7 @@
   "dependencies": {
     "@novnc/novnc": "1.4.0",
     "@webrecorder/wabac": "^2.22.9",
-    "browsertrix-behaviors": "^0.8.1",
+    "browsertrix-behaviors": "^0.8.3",
     "client-zip": "^2.4.5",
     "css-selector-parser": "^3.0.5",
     "fetch-socks": "^1.3.0",