Cleanup array and conversion primops

(Also progress towards #11953 (closed), #17377 (closed), #17375 (closed))

Fixes #19099 (closed) though in fairness also caused #19099 (closed).

See commit message for details

Out-of-band dependency PRs:

• https://github.com/simonmar/alex/pull/166, released in Alex 3.2.6
• ci-images!59 (merged)

Submodule PRs:

• https://github.com/haskell/cabal/pull/7205
• ghc/packages/array!8 (merged)
• https://github.com/kolmodin/binary/pull/178
• https://github.com/haskell/bytestring/pull/354 (or https://github.com/haskell/bytestring/pull/332 for 0.10)
• https://github.com/haskell/containers/pull/760
• https://github.com/haskell/text/pull/305

Afterwords PRs:

• https://github.com/alpmestan/ghc.nix/pull/97

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