fix(generate-release-changelog-links): drop optparse-applicative bound
The explicit optparse-applicative ^>= 0.18 dep (and matching import) was blocking resolution with GHC versions that ship optparse-applicative 0.19. All argument parsing goes through turtle, so optparse-applicative is a transitive dep only — removing the explicit bound and the unused Options.Applicative import fixes the solver failure without any code changes. ansi-wl-pprint removed for the same reason: never imported, was only there as a vestige of optparse-applicative 0.18's internal Doc type.