Bug 1832457 - Renew startup cache telemetry r=mconley

I don't see why this would stop being relevant. We want to continue having
historical information on this even if we're not actively looking at it today.

Differential Revision: https://phabricator.services.mozilla.com/D178688

toolkit/components/telemetry/Histograms.json

@@ -6397,7 +6397,7 @@
     "record_in_processes": ["main"],
     "products": ["firefox", "fennec"],
     "alert_emails": ["dothayer@mozilla.com", "plawless@mozilla.com"],
-    "expires_in_version": "116",
+    "expires_in_version": "never",
     "kind": "categorical",
     "labels": ["HitMemory", "HitDisk", "Miss"],
     "bug_numbers": [1364235, 1590385, 1623098, 1649954, 1689257, 1754639],
@@ -6408,7 +6408,7 @@
     "record_in_processes": ["main", "content"],
     "products": ["firefox", "fennec"],
     "alert_emails": ["dothayer@mozilla.com", "plawless@mozilla.com"],
-    "expires_in_version": "116",
+    "expires_in_version": "never",
     "kind": "categorical",
     "labels": ["Hit", "HitChild", "Miss"],
     "bug_numbers": [1364235, 1590385, 1623098, 1649954, 1689257, 1754639],
@@ -6419,7 +6419,7 @@
     "record_in_processes": ["main", "content"],
     "products": ["firefox", "fennec"],
     "alert_emails": ["dothayer@mozilla.com", "plawless@mozilla.com"],
-    "expires_in_version": "116",
+    "expires_in_version": "never",
     "kind": "exponential",
     "high": 10000,
     "n_buckets": 20,

toolkit/components/telemetry/Scalars.yaml

@@ -6470,7 +6470,7 @@ script.preloader:
     description:
       How many times we ended up recompiling a script from the script preloader
       on the main thread.
-    expires: "116"
+    expires: "never"
     keyed: false
     kind: uint
     notification_emails: