Move ethereum-serai under the processor

It isn't generally usable and should be directly integrated at this point.

.github/workflows/networks-tests.yml

@@ -31,7 +31,6 @@ jobs:
           GITHUB_CI=true RUST_BACKTRACE=1 cargo test --all-features \
             -p bitcoin-serai \
             -p alloy-simple-request-transport \
-            -p ethereum-serai \
             -p serai-ethereum-relayer \
             -p monero-io \
             -p monero-generators \

.github/workflows/tests.yml

@@ -52,6 +52,7 @@ jobs:
             -p serai-processor-signers \
             -p serai-processor-bin \
             -p serai-bitcoin-processor \
+            -p ethereum-serai \
             -p serai-ethereum-processor \
             -p serai-monero-processor \
             -p tendermint-machine \