package/nginx-naxsi: needs pcre2

Commit 722b84eafa5e3d9540e0a80bae0c971a3a778358 forgot to update
nginx-naxsi resulting in the following build failure:

In file included from ../nginx-naxsi-d714f1636ea49a9a9f4f06dba14aee003e970834/naxsi_src/naxsi_runtime.c:7:
../nginx-naxsi-d714f1636ea49a9a9f4f06dba14aee003e970834/naxsi_src/naxsi.h:147:3: error: unknown type name 'ngx_regex_compile_t'
  147 |   ngx_regex_compile_t* target_rx;
      |   ^~~~~~~~~~~~~~~~~~~

Fixes: 722b84eafa5e3d9540e0a80bae0c971a3a778358
 - http://autobuild.buildroot.org/results/87bbcf946ccbd8e3bf1ca9f39464f4bb198c8d42

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit 73c83dbe3e8e212b4b3d563b5ddf86354d6a6b29)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/nginx-naxsi/Config.in

@@ -1,8 +1,8 @@
 config BR2_PACKAGE_NGINX_NAXSI
 	bool "nginx-naxsi"
 	depends on BR2_PACKAGE_NGINX_HTTP
-	# uses pcre, so nginx needs to be built with pcre support
-	select BR2_PACKAGE_PCRE
+	# uses pcre2, so nginx needs to be built with pcre2 support
+	select BR2_PACKAGE_PCRE2
 	help
 	  NAXSI means Nginx Anti XSS & SQL Injection.