chore(main): release rea-agents 6.6.0 (#3476)

* chore(main): release rea-agents 6.6.0

* docs(release): finalize 6.6.0 notes and contribution record

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: morluto <76467478+morluto@users.noreply.github.com>

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "rea-agents",
-  "version": "6.5.0",
+  "version": "6.6.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "rea-agents",
-      "version": "6.5.0",
+      "version": "6.6.0",
       "license": "MIT",
       "dependencies": {
         "@babel/parser": "8.0.4",