fix changelog date format for deb

[LFRon]

是不是changelog里把Jun写成June了,本PR就是纠正了一下（

[github-actions]

TAG Bot

TAG: 1.0.2
EXISTED: yes
DISTRIBUTION: unstable

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This pull-request has been approved by: LFRon

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Hi @LFRon. Thanks for your PR. 😃

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[deepin-ci-robot]

Hi @LFRon. Thanks for your PR.

I'm waiting for a linuxdeepin member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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