[chore] skip trusted-proxies warning if ip excepted from rate limiting (#3699)

* [chore] skip `trusted-proxies` warning if ip excepted from rate limiting

* weep

* typo

* fix env parsing test

internal/config/validate.go

@@ -19,6 +19,7 @@ package config
 
 import (
 	"fmt"
+	"net/netip"
 	"net/url"
 	"strings"
 
@@ -168,5 +169,22 @@ func Validate() error {
 		)
 	}
 
+	// Parse `advanced-rate-limit-exceptions` and set
+	// parsed versions on config to avoid reparsing calls.
+	rles := GetAdvancedRateLimitExceptions()
+	rlesParsed := make([]netip.Prefix, 0, len(rles))
+	for _, rle := range rles {
+		parsed, err := netip.ParsePrefix(rle)
+		if err != nil {
+			errf(
+				"invalid entry %s in %s: %w",
+				rle, AdvancedRateLimitExceptionsFlag(), err,
+			)
+			continue
+		}
+		rlesParsed = append(rlesParsed, parsed)
+	}
+	SetAdvancedRateLimitExceptionsParsed(rlesParsed)
+
 	return errs.Combine()
 }