fix(balancer): miscellaneous improvements before resync (#104)

* fix(balancer): ignore self balance change

Euler pool emit a balance change for the pool itself. We don't want to have it because it's an unknown token from Tycho's perspective.

example: https://etherscan.io/tx/0x4a9ea683052afefdae3d189862868c3a7dc8f431d1d9828b6bfd9451a8816426#eventlog#338

* refactor(balancer): rename balancer module to balancer-v2

* ci: make clippy happy

---------

Co-authored-by: zizou <111426680+flopell@users.noreply.github.com>

testing/src/runner/runner.py

@@ -305,7 +305,7 @@ class TestRunner:
             data = yaml.safe_load(file)
 
         modify_func(data)
-        spkg_name = f"{yaml_file_path.rsplit('/', 1)[0]}/{data['package']['name'].replace('_', '-', 1)}-{data['package']['version']}.spkg"
+        spkg_name = f"{yaml_file_path.rsplit('/', 1)[0]}/{data['package']['name'].replace('_', '-')}-{data['package']['version']}.spkg"
 
         with open(yaml_file_path, "w") as file:
             yaml.dump(data, file, default_flow_style=False)