…effect via CLI (erigontech#21426)

## Summary

Forward-port of erigontech#21389 to `main`.

`RpcGetLogsMaxResults` was defined in `cmd/utils/flags.go` and consumed
in `node/cli/flags.go` (`ApplyFlagsForHttpCfg` populates
`GetLogsMaxResults`), but it was never added to the `DefaultFlags` slice
in `node/cli/default_flags.go`. As a result the `erigon` binary does not
register the flag and rejects it at startup:

```
Error: flag provided but not defined: -rpc.logs.maxresults
Run 'erigon --help' for usage.
```

Same bug that erigontech#21372 reported against `release/3.4`; the fix landed
there as erigontech#21389. `main` was missed.

One-line addition, placing the entry next to the already-registered
`--rpc.blockrange.limit`:

```diff
 &utils.RpcBlockRangeLimit,
+&utils.RpcGetLogsMaxResults,
 &utils.RpcBatchLimit,
```

## Test plan

- [x] `make lint` clean
- [x] `go build ./node/cli/...` clean
- [ ] CI passes
- [ ] After merge: confirm `erigon --rpc.logs.maxresults=10000 ...`
starts (no "flag provided but not defined")

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Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Adds the **v3.4.3** section to `ChangeLog.md`, covering the user-facing
changes merged to `release/3.4` since v3.4.2, and sets the v3.4.2 header
to its release date (2026-05-22).

**Bugfixes**
- #21538 — second fix for the post-reorg `gas used mismatch` /
state-leak still hitting v3.4.2 users
- #21507 — `debug_getModifiedAccountsByHash` / `ByNumber` now match Geth
semantics
- #21389 — `--rpc.logs.maxresults` (documented in 3.4.0) now takes
effect via the CLI

**Improvements**
- #21502 — fail-fast on oversized `engine_newPayload` backward download
(less per-slot log spam / wasted fetches)

Docs-only / internal PRs (#21451, #21408) are intentionally omitted.

Version bump tracked separately in #21547.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>