Update go module directive to v1.26.3

renovate[bot] · web-flow · commit d7e969c88221 · 2026-06-01T14:18:45.000Z
diff --git a/go.mod b/go.mod
@@ -1,6 +1,6 @@
 module github.com/newrelic/newrelic-prometheus-configurator
 
-go 1.26.2
+go 1.26.3
 
 require (
 	github.com/alecthomas/units v0.0.0-20240927000941-0f3dac36c52b
