fix: fix template offline field error

[moweiwei]

What type of PR is this?

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #76

Special notes for reviewers:

Does this PR introduced a user-facing change?

None

Additional documentation, usage docs, etc.:

[kubeclipper-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: moweiwei

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [moweiwei]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[codecov-commenter]

Codecov Report

❗ No coverage uploaded for pull request base (master@f02ef21). Click here to learn what that means.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master      #95   +/-   ##
=========================================
  Coverage          ?   47.46%           
=========================================
  Files             ?        6           
  Lines             ?      552           
  Branches          ?      152           
=========================================
  Hits              ?      262           
  Misses            ?      227           
  Partials          ?       63           

[x893675]

/lgtm

[kubeclipper-bot]

LGTM label has been added.

Git tree hash: 768eb3fb54e49b444a0b777387758ceaa444d624