build: define NODE_EXPERIMENTAL_QUIC in mkcodecache and node_mksnapshot

Otherwise the build would fail with
`./configure --experimental-quic --ninja` as the list of per-Environment
values would not match and the code cache builder would not generate
code cache for the quic JS sources. This is more or less a band-aid -
a proper fix would be to aggregate these flags into something
that can be included by all these different binary targets.
See #31074.

node.gyp

@@ -1376,6 +1376,11 @@
             'HAVE_OPENSSL=1',
           ],
         }],
+        [ 'node_use_openssl=="true" and experimental_quic==1', {
+          'defines': [
+            'NODE_EXPERIMENTAL_QUIC=1',
+          ],
+        }],
         ['v8_enable_inspector==1', {
           'defines': [
             'HAVE_INSPECTOR=1',
@@ -1430,6 +1435,11 @@
             'HAVE_OPENSSL=1',
           ],
         }],
+        [ 'node_use_openssl=="true" and experimental_quic==1', {
+          'defines': [
+            'NODE_EXPERIMENTAL_QUIC=1',
+          ],
+        }],
         ['v8_enable_inspector==1', {
           'defines': [
             'HAVE_INSPECTOR=1',