fix rpc flag

Author: DiogoSantoss

.env.sample.holesky

@@ -70,7 +70,7 @@ LIGHTHOUSE_CHECKPOINT_SYNC_URL=https://checkpoint-sync.holesky.ethpandaops.io/
 #CHARON_FALLBACK_BEACON_NODE_ENDPOINTS=
 
 # The address of the execution engine JSON-RPC API. 
-#CHARON_EXECUTION_CLIENT_RPC_API_ENDPOINT=
+#CHARON_EXECUTION_CLIENT_RPC_ENDPOINT=
 
 # Override the charon logging level; debug, info, warning, error.
 #CHARON_LOG_LEVEL=

.env.sample.hoodi

@@ -70,7 +70,7 @@ LIGHTHOUSE_CHECKPOINT_SYNC_URL=https://checkpoint-sync.hoodi.ethpandaops.io/
 #CHARON_FALLBACK_BEACON_NODE_ENDPOINTS=
 
 # The address of the execution engine JSON-RPC API. 
-#CHARON_EXECUTION_CLIENT_RPC_API_ENDPOINT=
+#CHARON_EXECUTION_CLIENT_RPC_ENDPOINT=
 
 # Override the charon logging level; debug, info, warning, error.
 #CHARON_LOG_LEVEL=

.env.sample.mainnet

@@ -70,7 +70,7 @@ LIGHTHOUSE_CHECKPOINT_SYNC_URL=https://mainnet.checkpoint.sigp.io/
 #CHARON_FALLBACK_BEACON_NODE_ENDPOINTS=
 
 # The address of the execution engine JSON-RPC API. 
-#CHARON_EXECUTION_CLIENT_RPC_API_ENDPOINT=
+#CHARON_EXECUTION_CLIENT_RPC_ENDPOINT=
 
 # Override the charon logging level; debug, info, warning, error.
 #CHARON_LOG_LEVEL=

docker-compose.yml

@@ -101,7 +101,7 @@ services:
       - CHARON_LOKI_ADDRESSES=${CHARON_LOKI_ADDRESSES:-http://loki:3100/loki/api/v1/push}
       - CHARON_LOKI_SERVICE=charon
       - CHARON_NICKNAME=${CHARON_NICKNAME:-}
-      - CHARON_EXECUTION_CLIENT_RPC_API_ENDPOINT=${CHARON_EXECUTION_CLIENT_RPC_API_ENDPOINT:-http://nethermind:8545}
+      - CHARON_EXECUTION_CLIENT_RPC_ENDPOINT=${CHARON_EXECUTION_CLIENT_RPC_ENDPOINT:-http://nethermind:8545}
     ports:
       - ${CHARON_PORT_P2P_TCP:-3610}:${CHARON_PORT_P2P_TCP:-3610}/tcp # P2P TCP libp2p
     labels: