Bump and changelog using commitizen

Version updated for commitizen-tools/commitizen-action to version 0.21.0.

• This action is used across all versions by 902 repositories.

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Release notes

0.21.0 (2024-03-05)

Feat

• add local version and devrelease as inputs (#69)
• Add PREVIOUS_REVISION to environment

[master 1f11eb2] bump: version 0.20.0 → 0.21.0 2 files changed, 8 insertions(+), 1 deletion(-)

• commitizen-tools
• GitHub Actions