Bump template-haskell to 2.17

On the master branch we should update the template-haskell version number to 2.17 after !2247 (closed) lands. This will first require bumping the upper version bounds on template-haskell in the following boot libraries:

exceptions (https://github.com/ekmett/exceptions/pull/80)
text (https://github.com/haskell/text/pull/275)

Edited Apr 12, 2020 by Ryan Scott

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Bump template-haskell to 2.17