Bump github.com/ethereum/go-ethereum from 1.9.3 to 1.9.5

[dependabot-preview]

Bumps github.com/ethereum/go-ethereum from 1.9.3 to 1.9.5.

Release notes

Sourced from github.com/ethereum/go-ethereum's releases.

Memory Stealer (v1.9.5)

This is a security-critical release that fixes a regression in v1.9.4 where blocks
with invalid state were created by the miner component.

---

As with all our previous releases, you can find the:

• Pre-built binaries for all platforms on our downloads page.
• Docker images published under ethereum/client-go.
• Ubuntu packages in our Launchpad PPA repository.
• OSX packages in our Homebrew Tap repository.

Frozen Pyjak (v1.9.4)

Geth v1.9.4 is a special maintenance release, that besides fixing issues as usual, also locks in the Istanbul hard fork block numbers for the Ropsten, Rinkeby and Görli test networks:

• Ropsten: 6485846, scheduled October 2, 2019 (ref).
• Rinkeby: 5435345, scheduled November 13, 2019 (ref).
• Görli: 1561651, scheduled October 30, 2019 (ref).

Please update your nodes on the above test networks before the deadlines, otherwise you will end up either on a wrong chain (Ropsten), or stuck altogether (Rinkeby and Görli). The --override.istanbul CLI flag can be used to bail out of the fork even last minute if things go sour.

---

Improvements:

• Accumulate state writes post-Byzantium and only push into the trie at block end (#19953).
• Smarter locking in the transaction pool to avoid some contention (#20080, #20081, #20085).

Bugfixes:

• Fix a USB HID discovery regression on Windows (#20092).
• Various stability and balancing fixes for light servers (#20079).
• Fix some RLP decoding issues around nils for discv5 (#20064).
• Expose the GraphQL port (8547) from our docker images (#20033).
• Fix GraphQL UI serving regression caused by gzip encoding (#20046).
• Fix GraphQL address type decoding to reject invalid strings (#20046).
• Fix P2P metric types so they work properly with Influx/Grafana (#20047).

For a full rundown of the changes please consult the Geth 1.9.4 release milestone.

---

As with all our previous releases, you can find the:

• Pre-built binaries for all platforms on our downloads page.
• Docker images published under ethereum/client-go.
• Ubuntu packages in our Launchpad PPA repository.
• OSX packages in our Homebrew Tap repository.

Commits

• a1c09b9 params: release Geth v1.9.5 stable
• 05347b3 core/state: fix state object deep copy (#20100)
• 24ef835 params: start v1.9.5 release cycle
• 46891c1 params: release Geth v1.9.4 stable
• c0010f0 Merge pull request #20092 from karalabe/vendor-usb-bump
• 9f98628 vendor: pull in USB Windows fixes
• a6a14f6 Merge pull request #20090 from soc1c/s1-testnet-istanbul
• f9eb307 core/forkid, params: fix tests, enable Istanbul on Rinkeby + testers
• 03c7d8f Merge pull request #20091 from karalabe/cht-1.9.4
• 2becb99 params: bump CHTs for the 1.9.4 release
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
• @dependabot use these labels will set the current labels as the default for future PRs for this repo and language
• @dependabot use these reviewers will set the current reviewers as the default for future PRs for this repo and language
• @dependabot use these assignees will set the current assignees as the default for future PRs for this repo and language
• @dependabot use this milestone will set the current milestone as the default for future PRs for this repo and language
• @dependabot badge me will comment on this PR with code to add a "Dependabot enabled" badge to your readme

Additionally, you can set the following in your Dependabot dashboard:

• Update frequency (including time of day and day of week)
• Pull request limits (per update run and/or open at any time)
• Automerge options (never/patch/minor, and dev/runtime dependencies)
• Out-of-range updates (receive only lockfile updates, if desired)
• Security updates (receive only security updates, if desired)

Finally, you can contact us by mentioning @dependabot.

[j16r]

@dependabot merge