[ZEN-530] Add link protocols subject to interceptors

[oteffahi]

Link protocols can be used to identify transports that should have interceptor rules applied to them.
For example:

• Downsampling can be configured to limit throughput to 10Hz on all transports that have a TCP connection.
• Access Control can be configured to deny confidential messages from passing on transports with clear-text communication (i.e not TLS and QUIC).

The configuration field is named link_protocols. Possible values are all of Zenoh's currently supported link protocols: tcp, udp, tls, quic, ws, serial, unixsock-stream, unixpipe, vsock.

This change does not break compatibility with existing interceptor configurations.

[github-actions]

PR missing one of the required labels: {'documentation', 'dependencies', 'enhancement', 'new feature', 'breaking-change', 'bug', 'internal'}

[codecov]

Codecov Report

Attention: Patch coverage is 85.13514% with 22 lines in your changes missing coverage. Please review.

Project coverage is 71.22%. Comparing base (3ea794a) to head (90e257d).
Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
zenoh/src/net/routing/interceptor/downsampling.rs	79.31%	6 Missing ⚠️
zenoh/src/net/routing/interceptor/mod.rs	61.53%	5 Missing ⚠️
io/zenoh-transport/src/unicast/authentication.rs	81.25%	3 Missing ⚠️
zenoh/src/net/routing/interceptor/qos_overwrite.rs	86.36%	3 Missing ⚠️
commons/zenoh-config/src/lib.rs	71.42%	2 Missing ⚠️
io/zenoh-links/zenoh-link-serial/src/unicast.rs	0.00%	1 Missing ⚠️
...enoh-links/zenoh-link-unixpipe/src/unix/unicast.rs	0.00%	1 Missing ⚠️
io/zenoh-links/zenoh-link-vsock/src/unicast.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1850      +/-   ##
==========================================
+ Coverage   71.19%   71.22%   +0.02%     
==========================================
  Files         363      363              
  Lines       65947    66047     +100     
==========================================
+ Hits        46952    47043      +91     
- Misses      18995    19004       +9     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[oteffahi]

Tracked in Jira as [ZEN-530]