op-service: withdrawals typing fixes

[protolambda]

• use geth withdrawals type
• verify withdrawals in rpc-block verification
• add test vectors and rpc-block tests

There is no need for a new eth.Withdrawal and eth.Withdrawals type, since the withdrawal is a small and lightweight struct already; matching what we have in the execution-payload.

In the EthClient and its RPC block decoding, we need the withdrawal attributes to be decoded and verified correctly, or completely ignored and non-exposed.
For shanghai support the withdrawals block data was added, but the parsing was broken, causing the node to get stuck on withdrawal data.

Tests

Added test-vectors for pre and post shanghai blocks, and turned the old header tests into the same test vector format.

Additional context

Things got broken in:

• Migrate from V1 to V2 APIs #7623
• Canyon: Blocks V2 P2P & Testing #7707

[tynes]

Generally looks good to me, needs linting

golangci-lint run -E goimports,sqlclosecheck,bodyclose,asciicheck,misspell,errorlint --timeout 5m -e "errors.As" -e "errors.Is" ./...
e2eutils/geth/fakepos.go:4: File is not `goimports`-ed (goimports)
        "github.com/ethereum-optimism/optimism/op-service/testutils"
make: *** [Makefile:56: lint] Error 1

Exited with code exit status 2

[protolambda]

fixed linting issue 👍

[trianglesphere]

I really like the script to generate good test data

[ajsutton]

LGTM.

[semgrep-app]

Semgrep found 1 todos_require_linear finding:

• .circleci/config.yml: L1232

Please create a Linear ticket for this TODO.

_{Ignore this finding from todos_require_linear.}