Update `sync-all` and `packages` wrt to fold-in

This adapts `sync-all` and `packages` to the recently folded-in Git
repositories

 - `base.git`
 - `ghc-prim.git`
 - `integer-gmp.git`
 - `integer-simple.git`
 - `template-haskell.git`

See #8545 as well as 5f54d678 for more
details.

Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>