Updated webkit2 packages fix security vulnerabilities

Updated webkit2 packages fix security vulnerabilities: Processing maliciously crafted web content may lead to arbitrary code execution. Multiple memory corruption issues were addressed with improved memory handling (CVE-2019-8644). Processing maliciously crafted web content may lead to universal cross site scripting. A logic issue existed in the handling of synchronous page loads. This issue was addressed with improved state management (CVE-2019-8649). Processing maliciously crafted web content may lead to universal cross site scripting. A logic issue was addressed with improved state management (CVE-2019-8658). Processing maliciously crafted web content may lead to arbitrary code execution. Multiple memory corruption issues were addressed with improved memory handling (CVE-2019-8666, CVE-2019-8669, CVE-2019-8671, CVE-2019-8672, CVE-2019-8673, CVE-2019-8676, CVE-2019-8677, CVE-2019-8678, CVE-2019-8679, CVE-2019-8680, CVE-2019-8681, CVE-2019-8683, CVE-2019-8684, CVE-2019-8686, CVE-2019-8687, CVE-2019-8688, CVE-2019-8689). Processing maliciously crafted web content may lead to universal cross site scripting. A logic issue existed in the handling of document loads. This issue was addressed with improved state management (CVE-2019-8690). For other fixes in this update, see the referenced release links.