Bump version to 1.4.0

[traversaro]

Checklist

• Used a personal fork of the feedstock to propose changes
• Bumped the build number (if the version is unchanged)
• Reset the build number to 0 (if the version changed)
• Re-rendered with the latest conda-smithy (Use the phrase @conda-forge-admin, please rerender in a comment in this PR for automated rerendering)
• Ensured the license file is being packaged.

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe) and found it was in an excellent condition.

[traversaro]

@conda-forge-admin, please rerender

[github-actions]

Hi! This is the friendly conda-forge automerge bot!

I considered the following status checks when analyzing this PR:

• linter: passed
• travis: passed
• azure: passed

Thus the PR was passing and merged! Have a great day!

[github-actions]

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[traversaro]

There seems an API change between CLI11 1.9 and 2.0, but I can't find it in https://github.com/CLIUtils/CLI11/blob/main/CHANGELOG.md#version-20-simplification .

[traversaro]

There seems an API change between CLI11 1.9 and 2.0, but I can't find it in https://github.com/CLIUtils/CLI11/blob/main/CHANGELOG.md#version-20-simplification .

Actually there is, the relevant change is:

The final "defaulted" bool has been removed, use ->capture_default_str() instead. Use app.option_defaults()->always_capture_default() to set this for all future options. CLIUtils/CLI11#597

[traversaro]

There seems an API change between CLI11 1.9 and 2.0, but I can't find it in https://github.com/CLIUtils/CLI11/blob/main/CHANGELOG.md#version-20-simplification .

Actually there is, the relevant change is:

The final "defaulted" bool has been removed, use ->capture_default_str() instead. Use app.option_defaults()->always_capture_default() to set this for all future options. CLIUtils/CLI11#597

Upstream fix: gazebosim/gz-utils#60 backported in this PR.