Merge branch '2021-03-22' into 'master'

patches/HTTP-4000.3.15.patch

patches/bifunctors-5.5.10.patch

patches/boomerang-1.4.7.patch

patches/bound-2.0.3.patch

patches/constraints-extras-0.3.0.2.patch

patches/cql-4.0.3.patch

patches/cryptonite-0.27.patch

patches/data-dword-0.3.2.patch

patches/deriving-compat-0.5.10.patch

patches/doctest-0.16.3.patch

patches/doctest-0.18.1.patch

patches/free-functors-1.2.1.patch

patches/haskell-src-meta-0.8.7.patch

patches/hxt-9.3.1.21.patch

patches/inspection-testing-0.4.3.0.patch

patches/invariant-0.5.4.patch

patches/kind-generics-th-0.2.2.1.patch

patches/lens-4.19.2.patch

patches/lens-5.0.1.patch

patches/lens-family-th-0.5.2.0.patch