package/webkitgtk: security bump to version 2.30.5

Fixes the following security issue:

- CVE-2020-13558: Processing maliciously crafted web content may lead to
  arbitrary code execution.  Description: A use after free issue in the
  AudioSourceProviderGStreamer class was addressed with improved memory
  management

For more details, see the advisory:
https://webkitgtk.org/security/WSA-2021-0001.html

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Acked-by: Adrian Perez de Castro <aperez@igalia.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/webkitgtk/webkitgtk.hash

@@ -1,7 +1,7 @@
-# From https://webkitgtk.org/releases/webkitgtk-2.30.4.tar.xz.sums
-md5  81c813d77a7b52ef655922f9b387f3a1  webkitgtk-2.30.4.tar.xz
-sha1  330f45d7badf944fb01a3238ebb2ceaad8c2a91f  webkitgtk-2.30.4.tar.xz
-sha256  d595a37c5001ff787266b155e303a5f2e5b48a6d466f2714c2f30c11392f7b24  webkitgtk-2.30.4.tar.xz
+# From https://webkitgtk.org/releases/webkitgtk-2.30.5.tar.xz.sums
+md5  c8291af0c5102fff1f73e67f0bff6c87  webkitgtk-2.30.5.tar.xz
+sha1  4fc8753786d7762a3c4ecdc7ea11fc38b5468d6f  webkitgtk-2.30.5.tar.xz
+sha256  7d0dab08e3c5ae07bec80b2822ef42e952765d5724cac86eb23999bfed5a7f1f  webkitgtk-2.30.5.tar.xz
 
 # Hashes for license files:
 sha256  0b5d3a7cc325942567373b0ecd757d07c132e0ebd7c97bfc63f7e1a76094edb4  Source/WebCore/LICENSE-APPLE

package/webkitgtk/webkitgtk.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-WEBKITGTK_VERSION = 2.30.4
+WEBKITGTK_VERSION = 2.30.5
 WEBKITGTK_SITE = https://www.webkitgtk.org/releases
 WEBKITGTK_SOURCE = webkitgtk-$(WEBKITGTK_VERSION).tar.xz
 WEBKITGTK_INSTALL_STAGING = YES