Add changelog

MadLittleMods · MadLittleMods · commit b1859710b8c5 · 2025-07-30T17:24:56.000-05:00
Same changelog as #18604 so they merge
diff --git a/changelog.d/18748.misc b/changelog.d/18748.misc
@@ -0,0 +1 @@
+Refactor cache metrics to be homeserver-scoped.

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	`+Refactor cache metrics to be homeserver-scoped.`