Better fallback when simdutf is not available

Better fallback when simdutf is not available

Regenerate case mappings for Unicode 14.0 with matching GHC 9.2

Fix redundant import for Dtaa.ByteString.Unsafe

Fixes:
```
libraries/text/src/Data/Text/Lazy/Encoding.hs:62:1: error: [-Wunused-imports, -Werror=unused-imports]
    The qualified import of ‘Data.ByteString.Unsafe’ is redundant
      except perhaps to import instances from ‘Data.ByteString.Unsafe’
    To import instances alone, use: import Data.ByteString.Unsafe()
   |
62 | import qualified Data.ByteString.Unsafe as B
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
```

Merge pull request haskell#308 from phadej/pr-306-span-break-doctest

Add examples to 'span' and 'break'

Release for GHC-9.0

text 1.2.3.2

- Special release supporting GHC 8.10.1 / `base-4.14.0.0` only

text 1.2.4.0

* Add TH `Lift` instances for `Data.Text.Text` and `Data.Text.Lazy.Text` (haskellgh-232)

* Update Haddock documentation to better reflect fusion eligibility; improve fusion
  rules for `takeWhileEnd` and `length` (haskellgh-241, ghc-202)

* Optimise `Data.Text.replicate` from `O(n)` to `O(log n)` (haskellgh-209)

* Support `base-4.13.0.0`

text 1.2.4.0 release candidate

text-1.2.3.1

* Make `decodeUtf8With` fail explicitly for unsupported non-BMP
  replacement characters instead silent undefined behaviour (haskellgh-213)

* Fix termination condition for file reads via `Data.Text.IO`
  operations (haskellgh-223)

* A serious correctness issue affecting uses of `take` and `drop` with
  negative counts has been fixed (haskellgh-227)

* A bug in the case-mapping functions resulting in unreasonably large
  allocations with large arguments has been fixed (haskellgh-221)