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>

substreams/Cargo.toml

@@ -1,6 +1,6 @@
 [workspace]
 members = [
-    "ethereum-balancer",
+    "ethereum-balancer-v2",
     "ethereum-curve",
     "crates/tycho-substreams",
     "crates/substreams-helper",
@@ -8,7 +8,7 @@ members = [
     "ethereum-uniswap-v2",
     "ethereum-uniswap-v3",
     "ethereum-sfrax",
-    "ethereum-sfraxeth"
+    "ethereum-sfraxeth",
 ]
 resolver = "2"