strongswan: Update to version 5.9.10

strongswan: Update to version 5.9.10

- Update from version 5.9.9 to 5.9.10
- Update of rootfile not required
- Changelog
strongswan-5.9.10
- Fixed a vulnerability related to certificate verification in TLS-based EAP
  methods that leads to an authentication bypass followed by an expired pointer
  dereference that results in a denial of service and possibly even remote code
  execution.
  This vulnerability has been registered as CVE-2023-26463.
- Added support for full packet hardware offload for IPsec SAs and policies with
  Linux 6.2 kernels to the kernel-netlink plugin.
- TLS-based EAP methods now use the standardized key derivation when used
  with TLS 1.3.
- The eap-tls plugin properly supports TLS 1.3 according to RFC 9190, by
  implementing the "protected success indication".
- With the `prefer` value for the `childless` setting, initiators will create
  a childless IKE_SA if the responder supports the extension.
- Routes via XFRM interfaces can optionally be installed automatically by
  enabling the `install_routes_xfrmi` option of the kernel-netlink plugin.
- charon-nm now uses XFRM interfaces instead of dummy TUN devices to avoid
  issues with name resolution if they are supported by the kernel.
- The `pki --req` command can encode extendedKeyUsage (EKU) flags in the
  PKCS#10 certificate signing request.
- The `pki --issue` command adopts EKU flags from CSRs but allows modifying them
  (replace them completely, or adding/removing specific flags).
- On Linux 6.2 kernels, the last use times of CHILD_SAs are determined via the
  IPsec SAs instead of the policies.
- For libcurl with MultiSSL support, the curl plugin provides an option to
  select the SSL/TLS backend.

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Reviewed-by: Peter Müller <peter.mueller@ipfire.org>