[WPE] Fix libwpe version check WPEWebView destructor

https://bugs.webkit.org/show_bug.cgi?id=271387

Reviewed by Adrian Perez de Castro.

WPEWebView destructor avoids calling 'wpe_view_backend_set_fullscreen_client'
for libwpe versions < 1.15.x - the fix appeared in 1.14.2, not 1.15.x - correct that.

Covered by existing tests, when executed with cog.

* Source/WebKit/UIProcess/API/wpe/WPEWebView.cpp:
(WKWPE::View::~View):

Canonical link: https://commits.webkit.org/276729@main

Source/WebKit/UIProcess/API/wpe/WPEWebView.cpp

@@ -490,8 +490,8 @@ View::~View()
         wpe_view_backend_set_backend_client(m_backend, nullptr, nullptr);
         wpe_view_backend_set_input_client(m_backend, nullptr, nullptr);
         // Although the fullscreen client is used for libwpe 1.11.1 and newer, we cannot
-        // unregister it prior to 1.15.2 (see https://github.com/WebPlatformForEmbedded/libwpe/pull/129).
-#if ENABLE(FULLSCREEN_API) && WPE_CHECK_VERSION(1, 15, 2)
+        // unregister it prior to 1.14.2 (see https://github.com/WebPlatformForEmbedded/libwpe/pull/129).
+#if ENABLE(FULLSCREEN_API) && WPE_CHECK_VERSION(1, 14, 2)
         wpe_view_backend_set_fullscreen_client(m_backend, nullptr, nullptr);
 #endif
     }