chore: update ada-idna to latest version (#517)

Author: anonrig

include/ada/ada_idna.h

@@ -1,4 +1,4 @@
-/* auto-generated on 2023-08-29 15:28:19 -0400. Do not edit! */
+/* auto-generated on 2023-09-19 15:58:51 -0400. Do not edit! */
 /* begin file include/idna.h */
 #ifndef ADA_IDNA_H
 #define ADA_IDNA_H
@@ -119,9 +119,8 @@ std::string to_ascii(std::string_view ut8_string);
 // https://url.spec.whatwg.org/#forbidden-domain-code-point
 bool contains_forbidden_domain_code_point(std::string_view ascii_string);
 
-bool constexpr begins_with(std::u32string_view view,
-                           std::u32string_view prefix);
-bool constexpr begins_with(std::string_view view, std::string_view prefix);
+bool begins_with(std::u32string_view view, std::u32string_view prefix);
+bool begins_with(std::string_view view, std::string_view prefix);
 
 bool constexpr is_ascii(std::u32string_view view);
 bool constexpr is_ascii(std::string_view view);

src/ada_idna.cpp

@@ -1,4 +1,4 @@
-/* auto-generated on 2023-08-29 15:28:19 -0400. Do not edit! */
+/* auto-generated on 2023-09-19 15:58:51 -0400. Do not edit! */
 /* begin file src/idna.cpp */
 /* begin file src/unicode_transcoding.cpp */
 
@@ -9387,18 +9387,19 @@ bool is_label_valid(const std::u32string_view label) {
 
 namespace ada::idna {
 
-bool constexpr begins_with(std::u32string_view view,
-                           std::u32string_view prefix) {
+bool begins_with(std::u32string_view view, std::u32string_view prefix) {
   if (view.size() < prefix.size()) {
     return false;
   }
+  // constexpr as of C++20
   return std::equal(prefix.begin(), prefix.end(), view.begin());
 }
 
-bool constexpr begins_with(std::string_view view, std::string_view prefix) {
+bool begins_with(std::string_view view, std::string_view prefix) {
   if (view.size() < prefix.size()) {
     return false;
   }
+  // constexpr as of C++20
   return std::equal(prefix.begin(), prefix.end(), view.begin());
 }