Use a fixed tag instad of main starting from apache kamelets 4.15.0 release

[gansheer]

What happened?

Adapt clone kamelet for make generate

camel-k/script/clone_kamelets.sh

Lines 27 to 29 in 1f8feca

	# TODO: use a fixed tag instad of main starting from apache kamelets 4.15.0 release
	wget -q -O kamelet_types.go https://raw.githubusercontent.com/apache/camel-kamelets/refs/heads/main/crds/pkg/apis/camel/v1/kamelet_types.go
	wget -q -O kamelet_types_support.go https://raw.githubusercontent.com/apache/camel-kamelets/refs/heads/main/crds/pkg/apis/camel/v1/kamelet_types_support.go

Steps to reproduce

No response

Relevant log output

Camel K version

main

[squakez]

It has to be from version 4.16 onward. There was a little change I had to include recently.