extend timeouts on http operations

[julian-hj]

This change addresses pivotal-cf/pivnet-resource#129

We have some operations against pivnet that consistently take a couple of minutes, so failing after 1 minute of waiting causes blocking issues in our pipelines.

CC @angelachin

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[cjnosal]

Regarding our comment on pivotal-cf/pivnet-resource#129 (comment) would you be interested in iterating on this PR?

[julian-hj]

Regarding our comment on pivotal-cf/pivnet-resource#129 (comment) would you be interested in iterating on this PR?

...Maybe? I am not sure whether we will have bandwidth or not, but we would defintely like to help. In the near term, is there some reason that a 10 minute timeout is problematic? We haven't seen any use cases on our (RelEng) end that get worse with a longer timeout, but maybe y'all have some cases that are different from ours.