Bug 1518134 - Extend paint phase histogram lifetime r=chutten

Differential Revision: https://phabricator.services.mozilla.com/D15835

--HG--
extra : moz-landing-system : lando

toolkit/components/telemetry/Histograms.json

@@ -13228,8 +13228,8 @@
   "CONTENT_LARGE_PAINT_PHASE_WEIGHT": {
     "record_in_processes": ["main", "content"],
     "alert_emails": ["gfx-telemetry-alerts@mozilla.com", "mwoodrow@mozilla.com"],
-    "bug_numbers": [1309442],
-    "expires_in_version": "66",
+    "bug_numbers": [1309442, 1518134],
+    "expires_in_version": "72",
     "keyed": true,
     "keys": ["dl", "flb", "fr", "r"],
     "kind": "linear",
@@ -13240,8 +13240,8 @@
   "CONTENT_SMALL_PAINT_PHASE_WEIGHT": {
     "record_in_processes": ["main", "content"],
     "alert_emails": ["gfx-telemetry-alerts@mozilla.com", "mwoodrow@mozilla.com"],
-    "bug_numbers": [1430897],
-    "expires_in_version": "66",
+    "bug_numbers": [1430897, 1518134],
+    "expires_in_version": "72",
     "keyed": true,
     "keys": ["dl", "flb", "fr", "r"],
     "kind": "linear",