[qtopcua] fix missing python and add warnings (#31111)

Co-authored-by: Billy Robert O'Neal III <bion@microsoft.com>

ports/qtopcua/portfile.cmake

@@ -18,13 +18,19 @@ INVERTED_FEATURES
 if("open62541" IN_LIST FEATURES)
     list(APPEND FEATURE_OPTIONS -DINPUT_open62541=system
                                 -DHAVE_open62541=true)
+    vcpkg_find_acquire_program(PYTHON3)
 else()
     list(APPEND FEATURE_OPTIONS -DINPUT_open62541=no)
 endif()
 
+if("uacpp" IN_LIST FEATURES)
+    message(WARNING "\nPlease note that you have to install the Unified Automation C++ SDK yourself.\n")
+endif()
+
 qt_install_submodule(PATCHES    ${${PORT}_PATCHES}
                      CONFIGURE_OPTIONS
                         ${FEATURE_OPTIONS}
+                        "-DPYTHON_EXECUTABLE=${PYTHON3}"
                      CONFIGURE_OPTIONS_RELEASE
                      CONFIGURE_OPTIONS_DEBUG
                     )

ports/qtopcua/vcpkg.json

@@ -1,6 +1,7 @@
 {
   "name": "qtopcua",
   "version": "6.5.0",
+  "port-version": 1,
   "description": "Qt wrapper for existing OPC UA stacks",
   "homepage": "https://www.qt.io/",
   "license": null,

versions/baseline.json

@@ -6694,7 +6694,7 @@
     },
     "qtopcua": {
       "baseline": "6.5.0",
-      "port-version": 0
+      "port-version": 1
     },
     "qtpositioning": {
       "baseline": "6.5.0",

versions/q-/qtopcua.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "efe3fbd8d37c121fbb7758de82fac9bd4b315a77",
+      "version": "6.5.0",
+      "port-version": 1
+    },
     {
       "git-tree": "4e08f45ca76dba44e3de1c48d6210e1d987f44b3",
       "version": "6.5.0",