samba: Update to version 4.21.4

samba: Update to version 4.21.4

- Update from version 4.21.3 to 4.21.4
- Update of rootfiles for x86_64, aarch64 and riscv64
- Changelog
    4.21.4
	   * BUG 15780: Increasing slowness of sharesec performance with high number of
	     registry shares.
	   * BUG 15782: winbindd shows memleak in kerberos_decode_pac.
	   * BUG 15738: Creation of GPOs applicable to more than one group is impossible
	     with Samba 4.20.0 and later.
	   * BUG 15756: Replace `crypt` module in
	     python/samba/netcmd/user/readpasswords/common.py.
	   * BUG 15151: vfs_gpfs silently garbles timestamps > year 2106.
	   * BUG 15796: Spotlight search results don't show file size and creation date.
	   * BUG 15703: General improvements for vfs_ceph_new module.
	   * BUG 15777: net offlinejoin not working correctly.
	   * BUG 15780: Increasing slowness of sharesec performance with high number of
	     registry shares.
	   * BUG 15759: net ads create/join/winbind producing unix dysfunctional
	     keytabs.
	   * BUG 14213: Windows Explorer crashes on S-1-22-* Unix-SIDs when accessing
	     security tab.
	   * BUG 15769: The values from hresult_errstr_const and hresult_errstr are
	     reversed in 4.20 and 4.21.
	   * BUG 15778: Kerberos referral tickets are generated for principals in our
	     domain if we have a trust to a top level domain.
	   * BUG 15783: NETLOGON_NTLMV2_ENABLED is missing in the SamLogon* user_flags
	     field.
	   * BUG 15703: General improvements for vfs_ceph_new module.
	   * BUG 15784: Regression: stack-use-after-return in crypt_as_best_we_can().
	   * BUG 15788: libreplace:readline: gcc 15 complains about incompatible pointer
	     types.
	   * BUG 15703: General improvements for vfs_ceph_new module.
	   * BUG 15703: General improvements for vfs_ceph_new module.

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>