fix(tool): the import did not use the new method to render when template append content

[Duslia]

What type of PR is this?

fix

Check the PR title.

• This PR title match the format: <type>(optional scope): <description>
• The description of this PR title is user-oriented and clear enough for others to understand.

(Optional) Translate the PR title into Chinese.

当模板增量更新时，import 未使用新增的 method 渲染

(Optional) More detailed description for this PR(en: English/zh: Chinese).

en: the import did not use the new method to render when template
zh(optional): 当模板增量更新时，import 未使用新增的 method 渲染

Which issue(s) this PR fixes:

[codecov]

Codecov Report

Base: 69.63% // Head: 69.68% // Increases project coverage by +0.04% 🎉

Coverage data is based on head (6b8c3e9) compared to base (c3068d4).
Patch has no changes to coverable lines.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #787      +/-   ##
===========================================
+ Coverage    69.63%   69.68%   +0.04%     
===========================================
  Files          232      232              
  Lines        17258    17258              
===========================================
+ Hits         12018    12026       +8     
+ Misses        4148     4143       -5     
+ Partials      1092     1089       -3     

Impacted Files	Coverage Δ
pkg/remote/trans/nphttp2/grpc/http2_client.go	73.90% <0.00%> (+0.15%)	⬆️
pkg/remote/trans/nphttp2/grpc/http2_server.go	71.38% <0.00%> (+0.47%)	⬆️
pkg/remote/codec/default_codec.go	74.34% <0.00%> (+2.63%)	⬆️

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