fix: http template read response.Body after cancel(), sometimes it return a context canceled error

[AnonyScorpio]

Motivation

http template read response.Body after cancel(), sometimes it return a context canceled error

Modifications

Read response.Body after cancel(), sometimes it return a context canceled error
For more detail https://groups.google.com/g/golang-nuts/c/2FKwG6oEvos

Verification

Documentation

[AnonyScorpio]

There is no impact because it will be retried several times.

[AnonyScorpio]

There is no impact because it will be retried several times.

Ok, problems can arise if the HTTP request is non-idempotent or time-consuming.

[Joibel]

There is no impact because it will be retried several times.

Ok, problems can arise if the HTTP request is non-idempotent or time-consuming.

Why does this PR cause this risk to change? (the risk of having retries call a non-idempotent URL multiple times)

[AnonyScorpio]

There is no impact because it will be retried several times.

Ok, problems can arise if the HTTP request is non-idempotent or time-consuming.

Why does this PR cause this risk to change? (the risk of having retries call a non-idempotent URL multiple times)
Read response.Body before response.Body.Close (defer response.Body.Close()) by handle ctx(tmpl.HTTP.TimeoutSeconds) and defer cancel() out of executeHTTPTemplateRequest