chore(deps): update dependency prom-client to v15 (#3050)

* chore(deps): update dependency prom-client to v15

* chore(dependencies): updated changesets for modified dependencies

---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

.changeset/@graphql-yoga_plugin-prometheus-3050-dependencies.md

@@ -0,0 +1,7 @@
+---
+'@graphql-yoga/plugin-prometheus': patch
+---
+dependencies updates:
+  - Updated dependency [`prom-client@^15.0.0`
+    ↗︎](https://www.npmjs.com/package/prom-client/v/15.0.0) (from `^13 || ^14.0.0`, in
+    `peerDependencies`)

packages/plugins/prometheus/package.json

@@ -39,13 +39,13 @@
   "peerDependencies": {
     "graphql": "^15.2.0 || ^16.0.0",
     "graphql-yoga": "^4.0.5",
-    "prom-client": "^13 || ^14.0.0"
+    "prom-client": "^15.0.0"
   },
   "dependencies": {
     "@envelop/prometheus": "8.0.3"
   },
   "devDependencies": {
-    "prom-client": "14.2.0"
+    "prom-client": "15.0.0"
   },
   "publishConfig": {
     "directory": "dist",