Update CI dependencies to v1.3.21 (2.1) (patch)

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence	Update
c2cciutils	==1.3.20 -> ==1.3.21					patch
camptocamp/c2cciutils	1.3.20 -> 1.3.21					patch

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Release Notes

camptocamp/c2cciutils (c2cciutils)

### [`v1.3.21`](https://togithub.com/camptocamp/c2cciutils/releases/tag/1.3.21) [Compare Source](https://togithub.com/camptocamp/c2cciutils/compare/1.3.20...1.3.21) ##### \[1.3.21] - 2024-03-06 ##### Changed - [#​1579](https://togithub.com/camptocamp/c2cciutils/pull/1579) - **\[Backport 1.3] Print rate limit and fix it** - [@​c2c-bot-gis-ci-2](https://togithub.com/c2c-bot-gis-ci-2) ##### Contributors - [@​c2c-bot-gis-ci-2](https://togithub.com/c2c-bot-gis-ci-2) Generated by [Automation](https://togithub.com/aeon-php/automation)

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