Add openapi generator provisioning on Windows

Place the downloaded file into the new directory inside C:\Utils and
add it to the PATH, because that's what the qtopenapi build scripts
expect.

Task-number: QTBUG-138968
Change-Id: I113b0095074cc8f0dc0470daf54fa7f22ee22719
Reviewed-by: Toni Saario <toni.saario@qt.io>

coin/provisioning/common/windows/install-openapi.ps1

@@ -0,0 +1,27 @@
+# Copyright (C) 2025 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+# openapi is needed for qtopenapi project
+
+. "$PSScriptRoot\helpers.ps1"
+
+$version = "7.15.0"
+
+$temp = "$env:tmp"
+Write-Host "Fetching openapi generator ver. $version..."
+$url_cache = "http://ci-files01-hki.ci.qt.io/input/qtopenapi/openapi_client_generators/openapi-generator-cli-$version.jar"
+$url_official = "https://repo1.maven.org/maven2/org/openapitools/openapi-generator-cli/$version/openapi-generator-cli-$version.jar"
+$target_file = "openapi-generator-cli.jar"
+$sha1 = "bb58e257f724fb46b7f2b309a9fa98e63fd7199f"
+
+Download $url_official $url_cache "$temp\$target_file"
+Verify-Checksum "$temp\$target_file" $sha1
+
+$openapi_location = "C:\Utils\qt-openapi"
+Write-Host "Copying $target_file to $openapi_location"
+New-Item -Path "$openapi_location" -ItemType Directory
+Move-Item "$temp\$target_file" "$openapi_location\$target_file"
+
+Prepend-Path "$openapi_location"
+
+Write-Output "OpenAPI generator = $version" >> ~/versions.txt