Include CONFIG_IP_NF_RAW and IP6 iptables modules in check-config

[robmry]

- What I did

• fix check-config.sh should check for IPv6 features #49615
• Failed to set up container networking 28.0.1 (module IP_NF_RAW dependency) #49557

- How I did it

- How to verify it

On a Debian host, running a kernel with # CONFIG_IP_NF_RAW is not set ...

# sh check-config.sh
warning: /proc/config.gz does not exist, searching other paths for kernel config ...
info: reading kernel config from /boot/config-6.1.128 ...

Generally Necessary:
- cgroup hierarchy: cgroupv2
  Controllers:
  - cpu: available
  - cpuset: available
  - io: available
  - memory: available
  - pids: available
- apparmor: enabled and tools installed
- CONFIG_NAMESPACES: enabled
- CONFIG_NET_NS: enabled
- CONFIG_PID_NS: enabled
- CONFIG_IPC_NS: enabled
- CONFIG_UTS_NS: enabled
- CONFIG_CGROUPS: enabled
- CONFIG_CGROUP_CPUACCT: enabled
- CONFIG_CGROUP_DEVICE: enabled
- CONFIG_CGROUP_FREEZER: enabled
- CONFIG_CGROUP_SCHED: enabled
- CONFIG_CPUSETS: enabled
- CONFIG_MEMCG: enabled
- CONFIG_KEYS: enabled
- CONFIG_VETH: enabled (as module)
- CONFIG_BRIDGE: enabled (as module)
- CONFIG_BRIDGE_NETFILTER: enabled (as module)
- CONFIG_IP_NF_FILTER: enabled (as module)
- CONFIG_IP_NF_MANGLE: enabled (as module)
- CONFIG_IP_NF_TARGET_MASQUERADE: enabled (as module)
- CONFIG_IP6_NF_FILTER: enabled (as module)
- CONFIG_IP6_NF_MANGLE: enabled (as module)
- CONFIG_IP6_NF_TARGET_MASQUERADE: enabled (as module)
- CONFIG_NETFILTER_XT_MATCH_ADDRTYPE: enabled (as module)
- CONFIG_NETFILTER_XT_MATCH_CONNTRACK: enabled (as module)
- CONFIG_NETFILTER_XT_MATCH_IPVS: enabled (as module)
- CONFIG_NETFILTER_XT_MARK: enabled (as module)
- CONFIG_IP_NF_RAW: missing
- CONFIG_IP_NF_NAT: enabled (as module)
- CONFIG_NF_NAT: enabled (as module)
- CONFIG_IP6_NF_RAW: enabled (as module)
- CONFIG_IP6_NF_NAT: enabled (as module)
- CONFIG_NF_NAT: enabled (as module)
- CONFIG_POSIX_MQUEUE: enabled
- CONFIG_CGROUP_BPF: enabled

Optional Features:
[...]

- Human readable description for the release notes

- Update `contrib/check-config.sh` to check for more kernel modules related to iptables

[thaJeztah]

LGTM