feat: add archive web3 gw support

[Yawning]

No description provided.

[codecov]

Codecov Report

Merging #281 (b66b4b0) into main (1f8f4ff) will decrease coverage by 2.16%.
The diff coverage is 11.93%.

@@            Coverage Diff             @@
##             main     #281      +/-   ##
==========================================
- Coverage   62.01%   59.84%   -2.17%     
==========================================
  Files          34       35       +1     
  Lines        3830     3990     +160     
==========================================
+ Hits         2375     2388      +13     
- Misses       1257     1397     +140     
- Partials      198      205       +7     

Impacted Files	Coverage Δ
archive/client.go	0.00% <0.00%> (ø)
conf/config.go	43.47% <ø> (ø)
main.go	8.42% <0.00%> (-0.52%)	⬇️
storage/psql/psql.go	59.66% <12.50%> (-1.81%)	⬇️
indexer/indexer.go	46.72% <35.29%> (-0.92%)	⬇️
rpc/eth/api.go	51.00% <40.62%> (-1.00%)	⬇️
rpc/apis.go	100.00% <100.00%> (ø)

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[Yawning]

This adds an indexer disable (See #84) but not the event related handling, so the option is only useful to allow archival instances to (in theory) share the db with a non-archival instance.