zlib: update to 1.2.13

Remove "001-neon-implementation-of-adler32.patch" because upstreamed
deleted assembler code optimizations:
d0704a8201

Remove upstreamed patches:
- 006-fix-CVE-2022-37434.patch
- 007-fix-null-dereference-in-fix-CVE-2022-37434.patch

Refresh patches:
- 002-arm-specific-optimisations-for-inflate.patch
- 003-arm-specific-optimisations-for-inflate.patch
- 004-attach-sourcefiles-in-patch-002-to-buildsystem.patch

Switch to "https github.com" for downloading source files.

Release Announcements:
https://github.com/madler/zlib/releases/tag/v1.2.13

Signed-off-by: Nick Hainke <vincent@systemli.org>

package/libs/zlib/patches/002-arm-specific-optimisations-for-inflate.patch

@@ -11,9 +11,6 @@ Change-Id: Id4cda552b39bfb39ab35ec499dbe122b43b6d1a1
  create mode 100644 contrib/arm/inffast.c
  create mode 100644 contrib/arm/inflate.c
 
-diff --git a/contrib/arm/inffast.c b/contrib/arm/inffast.c
-new file mode 100644
-index 00000000..0dbd1dbc
 --- /dev/null
 +++ b/contrib/arm/inffast.c
 @@ -0,0 +1,323 @@
@@ -340,9 +337,6 @@ index 00000000..0dbd1dbc
 + */
 +
 +#endif /* !ASMINF */
-diff --git a/contrib/arm/inflate.c b/contrib/arm/inflate.c
-new file mode 100644
-index 00000000..ac333e8c
 --- /dev/null
 +++ b/contrib/arm/inflate.c
 @@ -0,0 +1,1561 @@