Update package version to 2.15.3

pkg.info

@@ -1,6 +1,6 @@
 name: libxml2
 description: XML C parser and toolkit
-version: 2.15.2
+version: 2.15.3
 revision: 1
 url: https://gitlab.gnome.org/GNOME/libxml2
 license: MIT
@@ -24,4 +24,4 @@ downloads:
   - url: https://download.gnome.org/sources/libxml2/${BPM_PKG_VERSION%.*}/libxml2-${BPM_PKG_VERSION}.tar.xz
     extract_to: ${BPM_SOURCE}
     extract_strip_components: 1
-    checksum: c8b9bc81f8b590c33af8cc6c336dbff2f53409973588a351c95f1c621b13d09d
+    checksum: 78262a6e7ac170d6528ebfe2efccdf220191a5af6a6cd61ea4a9a9a5042c7a07

source-files/0001-catalog-Free-xmlCatalogResolveCache-on-cleanup.patch

@@ -1,25 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: "Jan Alexander Steffens (heftig)" <[email protected]>
-Date: Wed, 4 Mar 2026 19:08:16 +0100
-Subject: [PATCH] catalog: Free xmlCatalogResolveCache on cleanup
-
-Otherwise the `tstLastError.py` test will complain about a memory leak.
-
-Fixes: b706c5c5b7ce11d002a5b77ff938aa3693931c12 (Add xmlCatalogResolveCache)
-Fixes: https://gitlab.gnome.org/GNOME/libxml2/-/issues/1069
----
- catalog.c | 1 +
- 1 file changed, 1 insertion(+)
-
-diff --git a/catalog.c b/catalog.c
-index 8a5ca77a6ae1..bfaf099f47a4 100644
---- a/catalog.c
-+++ b/catalog.c
-@@ -3338,6 +3338,7 @@ xmlCatalogCleanup(void) {
-     if (xmlDebugCatalogs)
- 	xmlCatalogPrintDebug(
- 		"Catalogs cleanup\n");
-+    xmlResetCatalogResolveCache();
-     if (xmlCatalogXMLFiles != NULL)
- 	xmlHashFree(xmlCatalogXMLFiles, xmlFreeCatalogHashEntryList);
-     xmlCatalogXMLFiles = NULL;

source.sh

@@ -2,13 +2,6 @@
 # BPM Expects the source code to be extracted into the automatically created 'source' directory which can be accessed using $BPM_SOURCE
 # BPM Expects the output files to be present in the automatically created 'output' directory which can be accessed using $BPM_OUTPUT
 
-# The prepare function is executed in the root of the temp directory
-# This function is used for putting downloaded files to the correct location or applying patches
-prepare() {
-  cd "$BPM_SOURCE"
-  patch -Np1 -i "$BPM_WORKDIR"/0001-catalog-Free-xmlCatalogResolveCache-on-cleanup.patch
-}
-
 # The build function is executed in the source directory
 # This function is used to compile the source code
 build() {