iptables rules for mgmt net and bridges in both directions

[hellt]

setting up the rules in one of the directions (in/out) was not enough for all use cases. This fix sets the rules in both in and out directions for mgmt network and bridges used in the topology

[codecov]

Codecov Report

Attention: Patch coverage is 76.92308% with 42 lines in your changes missing coverage. Please review.

Project coverage is 52.76%. Comparing base (d7588f9) to head (a8a9e2b).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
runtime/docker/firewall/iptables/client.go	0.00%	30 Missing ⚠️
runtime/docker/firewall.go	88.88%	4 Missing and 2 partials ⚠️
nodes/bridge/bridge.go	86.36%	2 Missing and 1 partial ⚠️
runtime/docker/firewall/nftables/client.go	95.71%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2406      +/-   ##
==========================================
+ Coverage   52.51%   52.76%   +0.25%     
==========================================
  Files         168      168              
  Lines       16940    17039      +99     
==========================================
+ Hits         8896     8991      +95     
- Misses       7128     7132       +4     
  Partials      916      916              

Files with missing lines	Coverage Δ
runtime/docker/firewall/nftables/rule.go	82.45% <100.00%> (-0.60%)	⬇️
nodes/bridge/bridge.go	70.32% <86.36%> (+4.61%)	⬆️
runtime/docker/firewall/nftables/client.go	79.35% <95.71%> (+2.94%)	⬆️
runtime/docker/firewall.go	70.88% <88.88%> (+33.84%)	⬆️
runtime/docker/firewall/iptables/client.go	0.00% <0.00%> (ø)

... and 2 files with indirect coverage changes