proxyd: handle oversize requests/backend responses

Under certain conditions, users could provide batch requests that cause the upstream Geth nodes to return very large responses. These responses were being handled improperly, and rather than returning an error were being truncated and leading to backends being marked as offline. This issue extended to large client requests as well.

This PR also enables `pprof` on proxyd, which was used to debug this problem.

chore(proxyd): bump go to 1.21 and update dependencies

Support optional whitespace in XFF Header

build(deps-dev): bump nx from 16.10.0 to 17.0.1

build(deps-dev): bump hardhat from 2.18.1 to 2.18.2

contracts-bedrock: common test imports fix

ops: shared cached go docker build

Simple commit that updates the import style in the common test file
to reduce the diff in future commits.

Bumps [hardhat](https://github.com/nomiclabs/hardhat) from 2.18.1 to 2.18.2.
- [Release notes](https://github.com/nomiclabs/hardhat/releases)
- [Commits](https://github.com/nomiclabs/hardhat/compare/hardhat@2.18.1...hardhat@2.18.2)

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updated-dependencies:
- dependency-name: hardhat
  dependency-type: direct:development
  update-type: version-update:semver-patch
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Bumps [nx](https://github.com/nrwl/nx/tree/HEAD/packages/nx) from 16.10.0 to 17.0.1.
- [Release notes](https://github.com/nrwl/nx/releases)
- [Commits](https://github.com/nrwl/nx/commits/17.0.1/packages/nx)

---
updated-dependencies:
- dependency-name: nx
  dependency-type: direct:development
  update-type: version-update:semver-major
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op-e2e: Deduplicate blocks for alt sync test

Merge pull request #7705 from ethereum-optimism/dependabot/npm_and_yarn/ufm-test-services/metamask/babel/traverse-7.23.2

build(deps-dev): bump @babel/traverse from 7.22.20 to 7.23.2 in /ufm-test-services/metamask

fix(indexer) update withdrawal/deposit counters to use `big.Int`

feat(indexer) database insert idempotency

Version Packages

Canyon: Blocks V2 P2P & Testing

contracts-bedrock: L2 contracts reinit

contracts-bedrock: sepolia protocol versions proxy

feat: protocol versions mainnet

build(deps-dev): bump lint-staged from 15.0.1 to 15.0.2

feat(proxyd): avoid caching debug_getRawReceipts responses with 0 receipts

Bumps [lint-staged](https://github.com/okonet/lint-staged) from 15.0.1 to 15.0.2.
- [Release notes](https://github.com/okonet/lint-staged/releases)
- [Changelog](https://github.com/lint-staged/lint-staged/blob/master/CHANGELOG.md)
- [Commits](https://github.com/okonet/lint-staged/compare/v15.0.1...v15.0.2)

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updated-dependencies:
- dependency-name: lint-staged
  dependency-type: direct:development
  update-type: version-update:semver-patch
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