deps: update LJM to get analytics fixes

Bumps LJM to 3c80587431.

package-lock.json

       }
     },
     "lib-jitsi-meet": {
-      "version": "github:jitsi/lib-jitsi-meet#4879c5becdf7ba4d3dd94e6dcaab682fc0b11da9",
-      "from": "github:jitsi/lib-jitsi-meet#4879c5becdf7ba4d3dd94e6dcaab682fc0b11da9",
+      "version": "github:jitsi/lib-jitsi-meet#3c8058743177b6b6963d3bc3df14f4ea650ef310",
+      "from": "github:jitsi/lib-jitsi-meet#3c8058743177b6b6963d3bc3df14f4ea650ef310",
       "requires": {
         "@jitsi/sdp-interop": "0.1.14",
         "@jitsi/sdp-simulcast": "0.2.1",

package.json

     "js-utils": "github:jitsi/js-utils#192b1c996e8c05530eb1f19e82a31069c3021e31",
     "jsrsasign": "8.0.12",
     "jwt-decode": "2.2.0",
-    "lib-jitsi-meet": "github:jitsi/lib-jitsi-meet#4879c5becdf7ba4d3dd94e6dcaab682fc0b11da9",
+    "lib-jitsi-meet": "github:jitsi/lib-jitsi-meet#3c8058743177b6b6963d3bc3df14f4ea650ef310",
     "libflacjs": "github:mmig/libflac.js#93d37e7f811f01cf7d8b6a603e38bd3c3810907d",
     "lodash": "4.17.11",
     "moment": "2.19.4",