Add nym-socks5-listener to main workspace (#3455)

* Add nym-socks5-listener to main workspace

* add socks5-listener to CI build path trigger

* Using repr(u8) instead of repr(C) for ClientState enum

---------

Co-authored-by: Jędrzej Stuczyński <jedrzej.stuczynski@gmail.com>

.github/workflows/build.yml

@@ -9,12 +9,14 @@ on:
       - 'gateway/**'
       - 'integrations/**'
       - 'mixnode/**'
+      - 'sdk/lib/socks5-listener/**'
       - 'sdk/rust/nym-sdk/**'
       - 'service-providers/**'
       - 'nym-api/**'
       - 'nym-outfox/**'
       - 'tools/nym-cli/**'
       - 'tools/ts-rs-cli/**'
+      - 'Cargo.toml'
   pull_request:
     paths:
       - 'clients/**'
@@ -23,12 +25,14 @@ on:
       - 'gateway/**'
       - 'integrations/**'
       - 'mixnode/**'
+      - 'sdk/lib/socks5-listener/**'
       - 'sdk/rust/nym-sdk/**'
       - 'service-providers/**'
       - 'nym-api/**'
       - 'nym-outfox/**'
       - 'tools/nym-cli/**'
       - 'tools/ts-rs-cli/**'
+      - 'Cargo.toml'
 
 jobs:
   build: