Bump diesel from 1.4.1 to 1.4.3

[dependabot-preview]

Bumps diesel from 1.4.1 to 1.4.3.

Release notes

Sourced from diesel's releases.

1.4.3

Fixed

• Updated several dependencies
• Fixed an issue where the postgresql backend exploits implementation defined behaviour
• Fixed issue where rustdoc failed to build the documentation
• diesel_derives and diesel_migrations are updated to syn 1.0

Changelog

Sourced from diesel's changelog.

[1.4.3] - 2019-10-11

Fixed

• Updated several dependencies
• Fixed an issue where the postgresql backend exploits implementation defined behaviour
• Fixed issue where rustdoc failed to build the documentation
• diesel_derives and diesel_migrations are updated to syn 1.0

[1.4.2] - 2019-03-19

Fixed

• Parenthesis are now inserted around all mathematical operations. This means
  that (2.into_sql() + 3) * 4 will correctly evaluate to 20 as expected.
  Previously we would generate SQL that evaluated to 14. This could even result
  in runtime errors if multiple types were involved (for example, interval * (integer + 1))

Commits

• 066bc41 Release diesel 1.4.3
• bd5c8cf Merge pull request #2181 from helaan/1.4.x
• f94cca2 Bump bigdecimal-rs to 0.1.0
• bc769a6 dependency on 'ipnetwork' updated to include latest (0.15.0) crate
• 6c016b0 dependency on 'ipnetwork' updated to include latest (0.15.0) crate
• 5c087a1 cargo fmt
• 45260bf Update uitest
• be01ee0 Update syn related dependencies
• b3c4e78 Update syn to 0.15 in the migrations_macros crate
• d6ead5a Fix diesel_cli tests
• Additional commits viewable in compare view

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[dependabot-preview]

Superseded by #143.