deps: upgrade to Go 1.18.5

[lukedirtwalker]

Also upgrade:

• rules_go to v0.34
• gazelle to v0.26
• quic-go to v0.27.2

Also drop the dependency on the custom gomock bazel library, instead use
the rules_go gomock rule.

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This change is 

[matzf]

CI fails only because the protobuf files need to be regenerated (header changed) and some line numbers for the stacktrace in the in the serrors test golden files have changed (golden file just needs to be updated).

Reviewed 56 of 56 files at r1, all commit messages.
Reviewable status: all files reviewed, 2 unresolved discussions (waiting on @lukedirtwalker)

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go_deps.bzl line 997 at r1 (raw file):

    go_repository(
        name = "com_github_marten_seemann_qtls_go1_18",
        build_directives = ["gazelle:exclude generate_cert.go"],  # XXX(matzf): this file has a "// go:build ignore" instruction that gazelle does not understand

This should no longer be necessary with the patched gazelle. 🎉

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patches/README.md line 6 at r1 (raw file):

that simplify the migration when breaking changes to library packages are
introduced. Furthermore it contains patches to dependencies in subdirectories,
the remainder of this document is only about the patches for migrations. 

Trailing whitespace (lint error)

[lukedirtwalker]

Done.

Reviewable status: 54 of 76 files reviewed, 2 unresolved discussions (waiting on @lukedirtwalker and @matzf)

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go_deps.bzl line 997 at r1 (raw file):

Previously, matzf (Matthias Frei) wrote…

This should no longer be necessary with the patched gazelle. 🎉

Done.

Code quote:

com_github_marten_seemann_qtls_go1_18

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patches/README.md line 6 at r1 (raw file):

Previously, matzf (Matthias Frei) wrote…

Trailing whitespace (lint error)

Done.

[matzf]

Oh there also seem to be some new "nogo" errors in external libraries that now need to be excluded.

Reviewed 22 of 22 files at r2, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @lukedirtwalker)

[lukedirtwalker]

Fixed now. There was a failing e2e test, which I assume was a flake.

Reviewable status: 76 of 81 files reviewed, all discussions resolved (waiting on @lukedirtwalker)

[matzf]

Reviewed 5 of 5 files at r3, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @lukedirtwalker)