Bump github.com/BurntSushi/toml from 1.3.2 to 1.4.0

[dependabot]

Bumps github.com/BurntSushi/toml from 1.3.2 to 1.4.0.

Release notes

Sourced from github.com/BurntSushi/toml's releases.

v1.4.0

This version requires Go 1.18

• Add toml.Marshal() (#405)

• Require 2-digit hour (#320)

• Wrap UnmarshalTOML() and UnmarshalText() return values in ParseError for position information (#398)

• Fix inline tables with dotted keys inside inline arrays (e.g. k=[{a.b=1}]) (#400)

Commits

• 1e2c053 Undeprecate PrimitiveDecode and MetaData.PrimitiveDecode()
• f8f7e48 Update toml-test
• 9a80667 Add -json flag to tomlv
• 3203540 fuzz: move fuzz_targets from oss-fuzz (#406)
• 77ce858 Add Marshal Function (#405)
• 0e879cb Fix panic when trying to set subkey for a value that's not a table
• c299e75 Update toml-test
• 4223137 Fix inline tables with dotted keys inside inline arrays (#400)
• 45e7e49 Update toml-test
• c320c2d Fix utf8.RuneError test
• Additional commits viewable in compare view

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