update the polygon erigon setup to be able to use public rpcs and the new official supported version

polygon/erigon/Dockerfile

@@ -5,7 +5,7 @@ FROM golang:1.19-alpine as builder
 RUN apk add --no-cache make g++ gcc musl-dev linux-headers git
 
 # Grab ERIGON_VERSION from Build Args
-ARG ERIGON_VERSION
+ARG ERIGON_VERSION=v0.0.4
 
 # Clone the repo to that folder
 RUN git clone --recurse-submodules -j8 https://github.com/maticnetwork/erigon.git
@@ -25,6 +25,25 @@ FROM alpine:latest
 RUN apk add --no-cache ca-certificates curl jq libstdc++ libgcc
 COPY --from=builder /go/erigon/build/bin/erigon /usr/local/bin/
 
+# ENV HEIMDALLD=http://heimdalld:26657
+# ENV HEIMDALLR=http://heimdallr:1317
+
+ENV HEIMDALLD=https://polygon-mainnet-rpc.allthatnode.com:26657
+ENV HEIMDALLR=https://polygon-mainnet-rpc.allthatnode.com:1317
+
+# P2P
+EXPOSE 27113
+
+# HTTP / WS
+EXPOSE 8545
+
+# Metrics
+EXPOSE 6060
+
+# PProf
+EXPOSE 6061
+
+
 # Set entrypoint
 COPY ./scripts/entrypoint.sh /usr/local/bin/entrypoint.sh
 RUN chmod u+x /usr/local/bin/entrypoint.sh