fix(deps): update dependency elastic-apm-node to v4

Author: renovate[bot]

package.json

@@ -32,7 +32,7 @@
     "bunyan-debug-stream": "2.0.1",
     "chalk": "4.1.2",
     "dtrace-provider": "0.8.8",
-    "elastic-apm-node": "^3.49.1",
+    "elastic-apm-node": "^4.0.0",
     "escape-html": "1.0.3",
     "got": "11.8.5",
     "gravatar-url": "3.1.0",