en, zh: Bump Operator to v1.1.12

[csuzhangxc]

First-time contributors' checklist

• I've signed Contributor License Agreement that's required for repo owners to accept my contribution.

What is changed, added, or deleted? (Required)

Bump Operator to v1.1.12

ref #1108
Run commands:

find . -type f | xargs sed -i "s/v1.1.11/v1.1.12/g"

Which TiDB Operator version(s) do your changes apply to? (Required)

• master (the latest development version)
• v1.1 (TiDB Operator 1.1 versions)
• v1.0 (TiDB Operator 1.0 versions)

What is the related PR or file link(s)?

• This PR is translated from:
• Other reference link(s):

Do your changes match any of the following descriptions?

• Delete files
• Change aliases
• Need modification after applied to another branch
• Might cause conflicts after applied to another branch

[csuzhangxc]

/cc @DanielZhangQD @ran-huang

[DanielZhangQD]

LGTM

[ti-chi-bot]

[REVIEW NOTIFICATION]

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• DanielZhangQD

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[ran-huang]

/translation done
/hold
/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: 1057d74

[DanielZhangQD]

/unhold

[DanielZhangQD]

/merge