Point the repository URLs at their new owner

These moved from the Coffey-Labs org to jcoffey-dev, where they belong.
GitHub redirects a transferred repository, so nothing was broken by
leaving them -- but a source link that lands via a redirect is still
naming an owner that no longer holds the code, and the redirect only
lasts as long as nobody creates a repository of the same name in the
old place.

Only the seven repositories that actually moved are rewritten. Every
other Coffey-Labs URL is left alone: ihasmail, cairnobs and the rest
are still there.

package.json

@@ -29,10 +29,10 @@
   "author": "John Coffey",
   "repository": {
     "type": "git",
-    "url": "git+https://github.com/Coffey-Labs/great-powers.git"
+    "url": "git+https://github.com/jcoffey-dev/great-powers.git"
   },
   "homepage": "https://games.jcoffey.dev/powers/",
   "bugs": {
-    "url": "https://github.com/Coffey-Labs/great-powers/issues"
+    "url": "https://github.com/jcoffey-dev/great-powers/issues"
   }
 }