Add support for setting an HTTP read timeout for BigQueryIO

[jonathan-lemos]

Shamelessly stolen from #7097. This change is in response to b/357784942.

Regarding testing, the HTTPWriteTimeout also has no tests, and adding those would require, from what I can tell, hundreds of lines of refactoring, making this no longer a trivial 4-line (not including comments and whitespace) change.

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[ahmedabu98]

What was the old behavior like? (With no read timeout)

[jonathan-lemos]

The current behavior is to time out after 80 seconds which is why I've set the default in this PR to the same value.

[ahmedabu98]

Sounds good, thanks for the code reference.

LGTM