lint: enable intrange linter (#7331)

Enable intrange linter to enforce modern Go range syntax over
traditional for loops, by converting:

for i := 0; i < n; i++

to:

for i := range n

Adding type conversions where needed for compatibility
with existing uint64 parameters.

Signed-off-by: Ville Vesilehto <ville@vesilehto.fi>

plugin/debug/pcap.go

@@ -57,7 +57,7 @@ func hexdump(data []byte) []byte {
 	b := new(bytes.Buffer)
 
 	newline := ""
-	for i := 0; i < len(data); i++ {
+	for i := range data {
 		if i%16 == 0 {
 			fmt.Fprintf(b, "%s%s%06x", newline, prefix, i)
 			newline = "\n"