analytics: roll tracking ID.

Someone else has been sending weird data to ours and it has bad initial
test data so let's roll it before we ship it to everyone on Saturday.

Library/Homebrew/utils/analytics.sh

@@ -19,7 +19,7 @@ setup-analytics() {
     HOMEBREW_ANALYTICS_ID="UA-76492262-1"
   else
     # Otherwise, fall back to Homebrew's analytics.
-    HOMEBREW_ANALYTICS_ID="UA-75654628-1"
+    HOMEBREW_ANALYTICS_ID="UA-76679469-1"
   fi
 
   export HOMEBREW_ANALYTICS_ID