Meta: Update curl to version 8.19.0 to handle reduced mtu

When mtu (maximum transmission unit) on a network interface is reduced
below expected level, this leads to packet fragmentation that is not
always handled correctly by libcurl.

Changing the mtu is often done with VPNs, ipv6 tunnels, PPPoE, and other
special situations.

fixes #8072

https://github.com/curl/curl/issues/20440
https://github.com/curl/curl/issues/20445
https://github.com/curl/curl/issues/20448

vcpkg.json

@@ -1,5 +1,5 @@
 {
-  "builtin-baseline": "05442024c3fda64320bd25d2251cc9807b84fb6f",
+  "builtin-baseline": "48cfe1e0e928341709d97fc3d2eff10ad6262c96",
   "dependencies": [
     {
       "name": "angle",
@@ -235,7 +235,7 @@
     },
     {
       "name": "curl",
-      "version": "8.18.0#1"
+      "version": "8.19.0#0"
     },
     {
       "name": "dav1d",